Before anybody goes batsh*t, let me preface the following comments by saying this is
an examination of athletic traits and
not a projection of Kumorow's future productivity. Also included are some perspectives on what a 40 time tells you and what it does not.
Kumerow's Pro Day:
http://www.draftscout.com/ratings/dsprofile.php?pyid=112573&draftyear=2015&genpos=WR to
Nelson's Combine:
http://www.draftscout.com/ratings/dsprofile.php?pyid=12364&draftyear=2008&genpos=wr
Kumerow was 3/100 slower in the 40, an insignificant difference. Vertical is the same. Nelson 10" better in the long jump. However, Kumerow's quickness numbers in the shuttle and 3-cone are remakable for a guy 6' 4 1/2", measurably better than Nelson's and more comparable to Adams (whose nickname should be "Sudden"). I wouldn't bother with this or cite quickness measurables if I didn't think the quickness was evident on the field. Kumerow was quicker than Adams in the shuttle but slower in 3-cone:
http://www.draftscout.com/ratings/dsprofile.php?pyid=91227&draftyear=2014&genpos=WR
40 times can be representative or deceptive. In Nelson's case, I've observed many times that Nelson was a long strider, had an elite 5th. gear, and was one of the fastest guys in the league once he got rolling, say in the 15-60 yard range. If the eye test didn't convince you then consider he ran a 10.63 100 meters in high school. For a little perspective, NCAA champions (who would be older, more mature, and in "professional" sprinter training) have run in recent years in the 9.95 - 10.00 range after wind adjustment.
In looking for the 100 meter high school record, I found this:
https://collegefootballtalk.nbcspor...s-national-high-school-100-meter-dash-record/
It would be hard to find a starker illustration of where a poor 40 time can disguise elite long speed.
Of course Nelson had other "stuff" going on which we can lump into "football skills". Obviously many long speed sprinters have been NFL busts.
Now, we hear a lot about eye tests that say, "his field speed is better than his 40 time", as though this is some mystery. Of course a guy might just carry his pads better than others. Or there could be a mental component where a receiver might run a bit faster being chased or run a bit faster tracking down a deep ball, i.e., there's a football objective, than they do on an empty track. But there's not much mystery in the fact that different players have different acceleration curves. Some guys are quick off the line but top out quicker. Other guys, like Nelson, have an acceleration curve that keeps building to a very fast top.
Until the NFL Combine runs a 60 yard dash (where 60 yards is the outer limit of a thrown ball factoring in pocket depth), and records a 15-60 yard split time, this receiver field speed "mystery" will gain little clarity.
So, what kind of receiver is Kumerow and are his athletic abilities NFL-caliber?
If you didn't know his height while watching him I think you'd be surprised to find out how tall he is. I think that's because he is not a long strider. He has a running gait of a smaller guy. But that's where the quickness measurables come from. To my eye, his 4.54 Pro Day 40 time is in with his long speed in contrast to a Nelson. Is that bad? While 4.49 is what one might consider the break point above acceptable NFL receiver speed, compare to Adams' 4.51. Does 2/ 100, 3/100 or 5/100 of a second make much difference when receivers like Adams who lack that "mystery" long speed have the other things that make up a high-caliber NFL receiver given everything else that makes a WR? Evidently not.
Kumerow is more in the Adams mold than the Nelson mold in comparing to receivers we know well. If he wins it will be on quickness and route running, not speed, as is the case with Adams.
It's not Kumerow's athletic characteristcs that are at issue. It's the "other things" which are more mysterious than field speed. What would he do when he's playing against first stringers? At least so far the "other things" look pretty good against second stringers. Of course first string compeition is an issued for the rookies as well.