....are they not developing them?

I know it's subjective to each player whether it's free agency, off the field problems or unproductive play but all of the sudden you're seeing some ex-Bears players around the league that are producing for other teams while the Bears seem to getting worse or just old..  Here is my list whether justified or unjustified that are producing on other teams.. maybe some of you can add to it... 

Cedric Benson-(4th pick 2005) I don't think anyone saw this coming, I hate saying it but the dude is a beast behind that big offensive line. You have to respect the way he runs with a full head of steam but he is fumble prone. He was the highest drafted Bears player since Dan Hampton in 1979. We all know his story he held out and just never got on the same page with the Bears then had his problems with injuries and the law. He was replaced by Matt Forte. 

“You all know the competition that goes on around here. It doesn’t matter to me. Maybe somebody else can get some criticism.”- Cedric Benson on Bears management seeking another RB.

I think at the time everyone was fed up with Benson but as a Bears fan I respected how hard he ran and I personally would have liked to have seen him with Forte before they released him. But I also wasn't that worried when they let him go. He did fumble at times but you can see how good he can be with a good run blocking offensive line. 

(2 seasons with the Bears)

Benson score for Bears 

 

 

Bernard Berrian-( 78th pick in the 3rd round of the 2004 NFL Draft) Berrian was a big part of the 2006 Chicago Bears Super Bowl team and the teams was a speed burner that had some of his biggest games in the playoffs. 2008 Berrian signed a six-year, $42 million contract with the Minnesota Vikings that included $16 million in guaranteed money.

I'd say I'm with the Bears on this one thats just way too much money for a player like Berrian. Johnny Knox has filled in well. 

(4 seasons with the Bears)

Tank Johnson -( selected with the 47th pick of the second round of the 2004 NFL Draft)On January 23, 2007, two days after the Bears won the NFC Championship Game, Johnson was forced to appear in Circuit court to request permission to leave the State ofIllinois to travel to Miami, Florida to play in Super Bowl XLI stemming from an arrest on gun charges late in 2006.[2] The request was granted, and he played in the game, recording four tackles, assisting on another, and getting a half-sack.[3] On May 16, Johnson met with NFL commissioner Roger Goodell to determine punishment for his off-the-field transgressions,[4] with Goodell eventually imposing an eight-game suspension, with the possibility of a reduction to six games if Johnson followed certain requirements.

On June 25, after another run in with the law, the Chicago Bears waived Johnson, ending his three-year tenure with the team.

He was a talented imposing DL for the Bears but he couldn't stay out of trouble and his production dropped off. He was a risky pick at the time and the Bears knew it. 

(2 seasons with Bears)

 

Mark Bradley-( 2005 2nd round pick 39)Due to a season-ending injury against the Detroit Lions, Bradley was a small part of the Bears 2005 offense, starting only eight games, and recording just 18 receptions for 230 yards.

Following an injury to Bernard Berrian during week nine of the 2006 season, Bradley became a productive asset for the Bears’ offensive. While filling in for Berrian in the following weeks, Bradley caught two touchdown passes for 202 yards. He scored a 75-yard touchdown during the season's finale in a 26-7 loss to the Green Bay Packers.

Bradley was released by the Bears on September 23, 2008 after the team signed cornerback Marcus Hamilton.

Looking back it's safe to say he was a bust and he never seemed to he healthy. 

(3 seasons with Bears)
Mark Colombo-Colombo was selected in the first round (29th overall) of the 2002 NFL Draft by the Chicago Bears. He spent three injury-plagued seasons with the Bears before being released after the 2005 season. In 2002, as a rookie, Colombo was placed on injured reserve after suffering a dislocated patella and femoral nerve damage during a road game against the St. Louis Rams on November 18. He missed the entire 2003 season after being placed first on the Physically Unable to Perform (PUP) list on August 13, and then on injured reserve. He also missed most of the 2004 season; he was finally activated from the Reserve/PUP list to the active roster on November 8, 2004. In 2005, he played in the Bears season opener; however, he was waived the next week, on September 13, 2005. 
signed with the Dallas Cowboys on November 1, 2005.
On December 25, 2008, Columbo finalized a contract extension worth $22 million, with $11.5 million guaranteed, through the 2012 season.
(3 seasons with Bears)
Here is a list of bears draft picks during Angelo's tenure. 

3	4	68	Jarron Gilbert	DT	San Jose State
3	35	99	Juaquin Iglesias	WR	Oklahoma
4	5	105	Henry Melton	DE	Texas
4	19	119	D.J. Moore	CB	Vanderbilt
5	3	139	Colin Brown	OT	Missouri
5	4	140	Johnny Knox	WR	Abilene Christian
5	18	154	Marcus Freeman	LB	Ohio State
6	17	190	Al Afalava	S	Oregon State
7	37	246	Lance Louis	TE	San Diego State
7	42	251	Derek Kinder	WR	Pittsburgh

2008

Round	Pick	Overall	Name	Position	School
1	14	14	Chris Williams	OT	Vanderbilt
2	13	44	Matt Forte	RB	Tulane
3	7	70	Earl Bennett	WR	Vanderbilt
3	27	90	Marcus Harrison	DT	Arkansas
4	21	120	Craig Steltz	S	Louisiana State
5	7	142	Zack Bowman	CB	Nebraska
5	23	158	Kellen Davis	TE	Michigan State
7	1	208	Ervin Baldwin	DE	Michigan State
7	15	222	Chester Adams	OT	Georgia
7	36	243	Joey LaRocque	ILB	Oregon State
7	39	247	Kirk Barton	OT	Ohio State
7	40	248	Marcus Monk	WR	Arkansas

2007

Round	Pick	Overall	Name	Position	School
1	31	31	Greg Olsen	TE	Miami
2	30	62	Dan Bazuin	DE	Central Michigan
3	30	93	Garrett Wolfe	RB	Northern Illinois
3	31	94	Michael Okwo	LB	Stanford
4	31	130	Josh Beekman	OG	Boston College
5	30	167	Kevin Payne	CB	Louisiana-Monroe
5	31	168	Corey Graham	CB	New Hampshire
7	11	221	Trumaine McBride	CB	Mississippi
7	31	241	Aaron Brant	OT	Iowa State

2006

Round	Pick	Overall	Name	Position	School
2	10	42	Danieal Manning	S	Abilene Christian
2	25	57	Devin Hester	WR	Miami
3	9	73	Dusty Dvoracek	DT	Oklahoma
4	23	120	Jamar Williams	LB	Arizona State
5	27	159	Mark Anderson	DE	Alabama
6	26	195	J.D. Runnells	FB	Oklahoma
6	31	200	Tyler Reed	OG	Penn State

2005

Round	Pick	Overall	Name	Position	School
1	4	4	Cedric Benson	RB	Texas
2	7	39	Mark Bradley	WR	Oklahoma
4	5	106	Kyle Orton	QB	Purdue
5	4	140	Airese Currie	WR	Clemson
6	7	181	Chris Harris	CB	Louisiana-Monroe
7	6	220	Rodriques Wilson	LB	South Carolina

2004

Round	Pick	Overall	Name	Position	School
1	14	14	Tommie Harris	DT	Oklahoma
2	15	47	Terry Johnson	DT	Washington
3	15	78	Bernard Berrian	WR	Fresno State
4	14	110	Nathan Vasher	CB	Texas
4	16	112	Joe Leon	LB	Maryland
5	15	147	Claude Harriott	DE	Pittsburgh
5	16	148	Craig Krenzel	QB	Ohio State
7	14	215	Alfonso Marshall	CB	Miami

2003

Round	Pick	Overall	Name	Position	School
1	14	14	Michael Haynes	DE	Penn State
1	22	22	Rex Grossman	QB	Florida
2	3	35	Charles Tillman	CB	Louisiana-Lafayette
3	4	68	Lance Briggs	LB	Arizona
4	3	100	Todd Johnson	S	Florida
4	19	116	Ian Scott	DT	Florida
5	4	139	Bobby Wade	WR	Arizona
5	8	143	Justin Gage	WR	Missouri
5	36	171	Tron Lafavor	DT	Florida
6	18	191	Joe Odom	LB	Purdue
6	33	206	Brock Forsey	RB	Boise State
7	47	261	Bryan Anderson	OG	Pittsburgh

2002

Round	Pick	Overall	Name	Position	School
1	29	29	Mark Colombo	OT	Boston College
3	7	72	Roosevelt Williams	CB	Tuskegee
3	28	93	Terrance Metcalf	OG	Mississippi
4	6	104	Alex Brown	DE	Florida
5	5	140	Bobby Gray	S	Louisiana Tech
5	30	165	Bryan Knight	DE	Pittsburgh
6	27	199	Adrian Peterson	RB	Georgia Southern
6	31	203	James Elliott	WR	Delaware
6	38	210	Bryan Fletcher	TE	UCLA

2001