There's Roenicke and Salmon who throw harder than Burton. And at the end of the day I'm not sold Burton's going to be any better on WHIP and K/9 than guys like Todd Coffey and Marcus McBeth.
Burton's not exactly the punch-em-out sort and it's entirely possible that all of the four guys I just mentioned will be better this season than he is. Burton throws so hard that neither the new manager nor anyone reporting on the team has bothered to mention him all spring. He's been conspicuous by his absence.