Yes, 10.2 100m speed is good enough to be on the Aggie Track team (assuming it's fair wind and all). That's extremely fast - it puts you in the semifinals at the Olympics. Is that how fast that kid is going?? If so, definitely could be used as a crossover.
I think one of the biggest advantages football has been trying to get from the improvements in the track program is to get more of those "fast, but not fast enough" track/football kids on campus in HS, and use it as an excuse to show them the rest of the facilities.
I think a long jumper-receiver type could be a more likely combination for us, because of the athleticism involved. Is interesting that most of the bigtime track schools seem to have exploited it more than we have (Florida State, Florida, LSU, Texas)