I didn't get to see many of the WR positional drills, but looking through the numbers two guys stood out to me.
Da'Rick Rogers- Tennessee Tech- 6'2" 217lbs, 32 3/4" arms and 9 1/2" hands
Rogers had a really solid official 40 time of 4.52 (4.44U), but the thing that stoud out to me, apart from the bench press he was in the top 5 of every other drill.
Vert Jump: T1st- 39.5"
Broad Jump: T2nd- 11'0"
3 Cone: 4th- 6.71
20 yard shuttle: 5th- 4.06
60 yard shuttle: 5th- 11.31
He showed he is a top notch athlete to go with being a quality WR, so the upside is immense. He obviously has character issues, but he could be a steal in this draft.
The other guy that really stood out to me, and to be honest I had never heard of was T.J. Moe from Missouri.
T.J. Moe- Missouri- 5'11" 204lbs, 30 1/8" arms and 9 7/8" hands (thats pretty big)
Moe didn't wow anyone with his 40 time (officially 4.72), but he certainly showed quickness and surprising strength.
Bench: 1st- 26 reps
Vert Jump: T10th 36"
3 cone: 1st- 5.63 (thats fast)
20 yard shuttle: 1st- 3.96 (thats fast too)
60 yard shuttle: 1st- 10.87 (thats really fast! fastest in recent years)
What this tells me is that while he may not have great top end speed, he is extremely quick with amazing change of direction ability. He destroyed the likes of Tavon Austin and Marquise Goodwin in the 3 cone and shuttles at a higher weight and bigger frame. This screams slot WR to me so I looked a bit deeper to try and find some video and scouting reports on him.
I couldn't find too much tape on him, but I liked what I did see. This guy is a pure slot WR and not just a short guy people put there (like Tavon Austin). He is tough, physical and very tough to cover inside. He had a huge sophmore year with Blaine Gabbert at QB (92 rec, 1042 yards and 6 TD's) but that production really dropped with the change to a more running QB. This is what NFL.com says about him
STRENGTHS Compact, and solid frame. Works well over the middle, showing the toughness to hold onto the ball after taking a hit. Physical and aggressive route runner. Reliable hands. Good quickness in and out of his breaks.
BOTTOM LINE Moe is a tough, gritty wide receiver. He's built to play the slot receiver position, due to his compact build, toughness, and physicality. While he will likely never be a standout player, it's tough to imagine that he won't fight himself onto a roster.
With that kind of change of direction ability, solid hands and route running ability I think he could be a potential replacement for Wes Welker down the road (and its not just because he is short, white and slow). Give him a few years to adjust to the NFL (hopefully on the practice squad) and he could be a really good player. I don't care about the slow 40 because the incredible quickness numbers he put up are much more important for the slot.