There are AAA stealers too (Raines, Henderson). A AA stealer is a guy that can win a basestealing title. A AAA basestealer is an all-time great, best of his era. There's usually, therefore, typically only one in the deck at a time, even if it's a guy like Billy Hamilton who doesn't have much else in his offensive satchel. A 2 on defense in centerfield is a good flycatcher, and exists on a 1/2/3/4 spectrum. a -2 is a solid arm, but that comes on a much wider spectrum, going on a -5/-4/-3/-2/-1/0/+1/+2/+3/+4/+5 spectrum. Jesse Barfield was a +5. Dave Winfield and Ellis Valentine too, and I imagine Yoenis Céspedes when he was at the top of his game. I never had a -5 on my team, but I had an outfield of three -4's in Corey Snider, Kirby Puckett, and Glenn Wilson. George Bell was usually my starting leftfielder, but I'd call him in to play third (or lift him entirely) and send Snider out there when a sacrifice fly could make the difference. What you're not showing, however, is his actual baserunner rating, which should exist apart from his stealing rating. The top baserunner in the league usually has about a 1–18 rating, which means that, when he has a chance to go for an extra base, he's going to get it about 90% of the time, assuming a 0-armed outfielder is throwing.