It's late in the season. Miley has had injuries in the past and they can't afford to lose him at this point in the season. That wasn't an analytical decision that was the smart decision. Not every decision Bell makes is analytical contrary to popular belief. Especially with a 3 run lead. Yes, the bullpen has been bad most of the year but they've got guys that should be able to get 6 outs and they did. The Reds WON and that's what matters. They gave up a couple of solo home runs because Lorenzen was working on some pitches that haven't been effective for him this year.