Vehemently agree on Bloom's approach and on not acquiring a rental.
I also don't like Santana but have to trust the same guy, Bloom, and his manager, Cora, that Santana--at least for now--is worthy hanging onto. He is fast on the basepaths and a versatile fielder. He's 30 and 2 years ago his OPS was .857 in 130 games for Texas.
However, a bigger clue is that his lifetime OPS is .703 and OBP .297. Except for baserunning and versatile defense, he mostly stunk in 4 seasons (2014, his first season, was pretty good with an OPS of .814) at Minnesota and 2 at Atlanta. The Twins, the Braves, and the Rangers have all been more than happy to let him go.
Maybe the rub is that Santana this year is being paid $1.75M, more than each of 9 other Sox active roster players: Sawamura, Workman, Verdugo, Pivetta, Arroyo, Taylor, Darwinzon Hernandez, Dalbec, and Whitlock. $1.75M is a far cry from the horrors of HanRam and Sandoval, but still.