almost all his outs are double plays which is hard to believe for a speed guy?
Two reasons a speed guy might hit in to a lot of double plays.
1 - If it is a chevy card hitters get hit with more gb(A) because no pitchers in a chevy seasons get a gb(A).
2 - Could be he really did hit in to a lot of double plays which will be reflected even in a cadillac season. I know logic says he gets down the line to first quick so less time to turn the double play. But at the same time many speed guys are also ground ball guys who depend on their speed for hits. Good chance for a hit if those ground balls are not hit right at someone. But when they are it is a tailor made double play even if the guy can run. The effect is magnified if he hits hard ground balls.