We don't know if Wallace is easy to replace but the main reason Wallace is successful is due to Ben extending plays. We have no idea if Wallace can perform in Miami with Tannehill throwing to him. Hell, even if you put him on a team with Manning, Brees or Rodgers it's a toss up. Can Wallace catch passes in traffic while draped? Can he catch timing patterns where Manning has the ball in the air before he breaks?
His strength is the go route and unless he gets with a QB who has the perfect pass I think we are going to see Wallace turn into a Nate Washington. A decent WR on a scrub team.
He will probably be overpaid by somebody, but the offense will be worse without him. Perhaps that can be helped through the draft, but that then precludes the team from addressing another area.
His time has been reported as being fake, although he did run in the 4.3 range.
We can't keep Wallace. He doesn't play defense.
Steelers 2013 Draft
1--Jarvis Jones OLB Georgia
2--Jesse Williams NT Alabama
3--LeVeon Bell RB Michigan State
4--Jordan Poyer CB Oregon State
5--Earl Wolff SS North Carolina State
6--Josh Boyd NT Mississippi State
6---Conner Vernon WR Duke
7--Vince Williams ILB Florida State
That being said, this kid is still super fast. Plus, the music playing in that video was really quality and not just a bunch of complete noise and trash.