Another surprise, to me, is that Dave Ross was identified as high risk--whereas Jason LaRue, now with the Royals and a few years older, was a low risk player. I'll be interested to see if Carroll will comment on this in his future articles, as I see no reason why we'd expect Ross to be injury prone. If anything, he should be ahead of the curve because he spent a lot of time on the bench before breaking through last year--and thus hasn't caught nearly as many innings as a guy like LaRue. I'm expecting Ross to regress as a hitter this year, but I certainly wouldn't predict an unusually high risk of injury.
Update: Carroll did, in fact, identify what made Ross a high risk player. Apparently, it's based on projected playing time:
Ross is another of this year’s "playing time reds." With Jason LaRue moving on and Javier Valentin forgetting how to hit, Ross might get 120 games of catching. If that’s closer to 100, the team would be better from a risk standpoint, but that’s not necessarily the best split from a winning standpoint.