I have mixed feelings 'bout what we gave up for Babin in the draft - but it's worth it if he can perform as hoped for at the all important OLB position in our
3-4 D. At the same time, I'm so glad we didn't move up in the draft this year to take Sean Taylor (a widely rumored move by us which was popular with a lot of Texans' fans) - because it would have cost us dearly and for what - an allegedly great college football player playing the relatively unimportant position of safety.
That's my same argument for Coleman - if Robinson meets our expectations and has some time to develope he will be an upgrade over Coleman(and a young player who will be with us for many yrs) and the latters importance to the team can now be discounted because he's playing a far less important position with his move from CB to safety.
But as Lucky pointed out, we suffered mightily with Stevens - but he was an inferior athlete and player by NFL standards. A larger problem re. our D than Stevens missing all those tackles is that we depended on anybody making so many tackles 30 to 40 yards down the field and beyond the line of scrimage.