Talib has the tools to be a top-notch corner in the NFL. He has size, instincts and confidence that teams look for at this position.
But Talib's draft status took a hit when he acknowledged in interviews at the NFL combine in February that he tested positive for marijuana three times while at Kansas.
"Anytime we get information like that, we use it," DeCosta said. "It's never a good thing."
How much will this hurt Talib on draft day?
"We have seen it impact other players' draft positions," DeCosta said.
Cornerbacks haven't been the usual hot commodities in the past two drafts.
In 2006, the first cornerback wasn't taken until the 15th pick, when the St. Louis Rams drafted Tye Hill. Last year, the first one wasn't selected until the 14th pick, when the New York Jets selected Darrelle Revis.
It's unknown whether any of this year's cornerbacks will go higher.
In this year's top 10, the Jets (No. 6), New England Patriots (No. 7), Ravens (No. 8) and New Orleans Saints (No. 10) could be interested in taking one.
It seems the Ravens are not alone in trying to figure out who is the clear-cut top cornerback in the draft.
"Do we have a corner ranked No. 1 on our board? Yes, we do," Ravens general manager Ozzie Newsome said. "But could one guy be ranked at the top on our board and he's only fourth on someone else's board? That could be true, too."
jamison.hensley@baltsun.com
CORNER MARKET
Leodis McKelvin
College: Troy
The top cornerbacks in the draft: Size: 5-11, 190
2007 stats: Returned three punts for touchdowns, made two interceptions and broke up nine passes. His eight career kick returns for touchdowns (seven punts, one kickoff) tied the NCAA Division I-A record.
Plus: Good speed, feet and instincts. Can make instant impact as a returner.
Minus: Failed to make several interceptions because of bad hands. Comes from small Division I school.
Dominique Rodgers-Cromartie
College: Tennessee State
Size: 6-2, 182
2007 stats: Deflected 11 passes and picked off two others, returning both interceptions for touchdowns.
Plus: Prototypical corner with great speed, height and playmaking ability. Proved he could play against big-time college stars at Senior Bowl.
Minus: Rarely challenged in Division I-AA. Can play recklessly, which has led to costly penalties.
Aqib Talib
College: Kansas
Size: 6-1, 202
