But there are some like Michigan;s Taylor Lewan that can do both.
Taylor Lewan from @UMichFootball with an unofficial 4.88 40-yard dash! WATCH: http://t.co/uUddDCBxNQ #NFLCombine
— NFL (@nfl) February 22, 2014
Lewan has been projected as a first rounder--somewhere between 11 and 20--and with the way things have gone at the Combine for him there is no reason to believe he'll slip beyond that.