Great, so we shoot for a guy say in round 3 that we think COULD be comparable to Landry (doubt any S in this draft is comparable to a healthy Landry never mind 3rd round).
Then what? Who else starts at S? Bush? Allen? Resign E Smith? IF we had another S on the roster who was signed, and projected to start, and be a competent starter, then yes let him walk, and try, and find his replacement, BUT we don't have a starting FS, or SS on the team, and the odds of drafting 2 that can start day 1 is silly to think UNLESS you WASTE 2, of your 1st 3 picks on a Safety, and that is not a very smart play!
The move here is to sign Landry, trade Cro, and try, and find a true FS prospect in rd 3, and bring in a cheap veteran who can hold the fort if prospect can't cut it year 1, and with Landry's versatillity to play both positions it opens up more options on which veteran cheap FA to sign.
It really depends on how much money Landry is going to cost, and how much money we will continue to tie up in our secondary.
We really cant afford to pay three of our four DBs, elite-money. Unless Revis and Cro (both) take a cut to keep Landry, someone's gotta give, and Laron's contract is up.
Here's my what-if:
What if we tried to trade Revis for 2 first round picks (a 2013 1st, and a conditional 2014 2nd that could move up into a 1st).
What if we then drafted the best CB prospect in the draft with our pick, and picked up our OLB, or OL later in the first with the Revis pick.
Then we would have enough money to afford an elite (paid) DB like Landry. Granted, it would be at the expense of losing a generational player (and his hefty contract).
Who would you prefer:
-Milliner (or another 1st round CB), Cromartie, and a Landry/Bush combination [plus your 1st round pick this year, and 2,1st round picks next year]
-Revis, Cromartie, and a Bush/(3rd round rookie SS) [plus your 1st round pick this year and next]