Who we draft will depend heavily on who gets signed. Unless DaBrick falls to 8, we aren't picking an O-Lineman anyway. On the D-Line, I'd only consider Williams or Ngata worth selecting there. Davis rounds out the 4 guys I want and that the team needs. (edit: long-term, Huff makes a lot of sense here, too)
There are numerous advantages to drafting a dynamic TE like Davis. For one, there's offsetting the Moulds loss and the decreased necessity to pass out of 3 WR/4 WR sets. Also, as with Crumpler, Shockey, and Gates, having a go-to TE who you can always count on to dump the ball off to does wonders for an up-and-coming QB. Combine that with a genuine deep threat receiver and a high-end RB and you've given your QB enough weapons to succeed (granted, of course, he has to have more than 1.7 seconds to make a decision on where he wants to go with the ball). If JP can't succeed with Evans, Davis and McGahee and a revamped, albeit not dominant by any means, OL, than I think we'll be a lot closer to having our answer on whether or not he's got what it takes.