Well the Brazilian Ronaldo supposedly could run a 100m in 10.50 at his peak, which is unbelievably phenomenal, and he is 6 foot tall, with legs as thick as tree trunks.
An interesting read from Fourfourtwo was that Cristiano Ronaldo is the fastest "top" player in the world on and off the ball, when using game tape analyse and 100m timings. He is much more comparable to the physique of Bolt as well. I can't remember what issue number it was, but it stated that in the 2008-2009 season, Ronaldo was the fastest player, Ablongahor(however you spell it) was second fastest, Walcott third, and interestingly Rooney 4th. So the two fastest were what you might consider a traditional sprinter build, were as Walcott and Rooney are more short.
The main point the article raised was that, Walcott looks like the fastest player in the world, because he is short. When he is running, his shorter stride length means he must take many more strides to be running the same speed as a taller player. The other point was Ronaldo and Abonlahor don't necessarily look like they are burning the pitch, but their stride length and power is so great that they are covering ridiculous distances in only a short amount of strides.
Basically, the taller you are, the more naturally inclined you are to have a slower stride rate, but a greater stride distance, and the opposite is true for shorter players. In theory, a medium sized person of around 5'8-6'0 would be the faster sprinter build, because they would have the perfect formulae for stride length and frequency as their natural running style. Coincidently the likes of Rooney, david villa, fat Ronaldo, Cruyff, and Pele all fall into that height bracket.
Also there is the fact that when a player becomes too tall (6'0) + they begin to have a reduced acceleration ability. This probably explains why some of the names listed above were/are such great dribblers, and why players like Messi and Maradona who are considered short were still such brilliant dribblers, even if they probably wouldn't win 100m races against their team mates.
IMO Acceleration is worth a lot more in football, and it makes a much bigger difference to how good you are. There is no point in running 100m's a second faster than everyone else on the pitch if you only get 1 or 2 times in a game that you run long enough to reach that speed.