I did a little google research for the heck of it:
Alex Carrington draft projections:
Sideline Scouting: 3rd round
College Football News: 3rd round
NFL Football Picks: fringe 2nd rounder
The RX Forum: mid-2nd to early 3rd round
RookieDraft.com: 3rd/4th round
Consensus Draft Services: 7th round (!)
Milwaukee Journal Sentinel: 3rd round
Mike Neal draft projections:
Sideline Scouting: 4th round
College Football News: 4th round
RookieDraft.com: 5th round
Sports Illustrated: 4th round
Consensus Draft Services: 5th round
Okay, that's enough for now. The bottom line is that there will be a whole lot of "I told you so's if Neal does not work out.
The best I can say in Ted Thompson's defense is that players who switch positions from college to pro tend to get underrated in draft projections. In this case, the writers were mostly looking at Neal's value as a DT rather than as a 3-4 DE.