The new NFL speed burners are mainly CBs,  WRs, and RBs.  There are not many players with 10 yard times under 1.5 seconds which is the distance where a lot of the game is played.  The fastest times in 10 yards were RBs and WRs except for Taylor Mays.   These players and times were identified by using the web browsers' find feature and the CBS Sports draft prospects data base for all players. For instance while having the file open, select a time such as 4.3 to find players of 4.30 to 4.39.  Almost all of these players were selected in the draft.

10 yard times:
1.40 to 1.49 second times
Taylor Mays 1.45, C.J. Spiller 1.48, Ryan Mathews 1.49, Jahvid Best 1.48, Chris Cook 1.49, Ben Tate 1.49, Jacoby Ford 1.46, Emmanuel Sanders 1.49, Scott Long 1.49, Stephen Williams 1.48, Jared Perry 1.49

40 yard times:
4.20 to 4.29 second range
Jacoby Ford 4.22, Trindon Holliday 4.21, C.J. Spiller 4.27

4.30 to 4.39 second range
Taylor Mays 4.31, Ryan Mathews 4.37, Devin McCourty 4.38, Jahvid Best 4.34, Brandon Ghee 4.37, Akwasi Owusu-Ansah 4.32, Ben Tate 4.34, Marcus Easley 4.39, David Pender 4.37, Sam Shields 4.32, Alfonso Smith 4.38,
LaMarcus Coker 4.38, Kelton Tindal 4.36, Brandon Banks 4.37, Marcus Sherels 4.38, Bryan McCann 4.35, Contravious Parks 4.37, Aaron Woods 4.32