Of the free agent guys mentioned, the two who scare me the least are Harris and Stammen, because their walk rates are better than the others. Home run rate is much more prone to volatility in a new park, when a guy is a year older, and just due to random chance. If you bring on a guy like Cishek, the gamble might pay off, but you’d be counting on him to prevent homers at his historically good pace despite inevitable traffic. His walk rate the last 3 years has trended 2.6, 3.6, 4.1.
I guess I’d be fine with any of these guys at the right price. But I’d temper my expectations with all of them.