I actually liked Preston Brown the player coming out of college but I questioned using a 3rd round pick on what at the time would be a backup LB in a year the team was supposedly all in. Thought there were other players at other positions who would contribute more last year (a guard, any guard) but turned out to be a great pick considering the Kiko injury which no one could have anticipated.
I feel the same way about the Darby pick this year. CB is always a need we all know this but using their first pick on one when they are already 3-4 deep at the position was questionable to me especially when there were a couple tackles and TE's available who would contribute more this year.