If we're gonna go with a big fast WR from Tennessee I'd rather have the other one -- Justin Hunter -- in the 2nd.
That being said, when you look at team like the Saints, it seems like in their glory days always had 3 or 4 tall WRs on the roster who all had decent to good speed, and they somehow found a way to get all of them their touches even though no single one of them was ever really "the guy". So if we could get something like that going with the Bears that wouldn't stink, though again I think WRs like that don't necessarily require using a 1st round pick.