1
Many total putouts are a good measure of defensive value. Sometimes they aren't. A certain fielder could have 20 more "routine" plays than another in a certain year. It happens all the time and is part of the reason D stats fluctuate so much.
RF is the ONLY stat that liked Bay in '09 and it HATED him in '08. 3-4 DIFFERENT systems rate him as a poor fielder from '07-'09. Theres just very little evidence that Bay is still a league average fielder.