The Mariners bullpen has been one of the more frustrating parts of this season. They looked solid enough on paper with a couple young flamethrowers and a tactful lefty — Stephen Pryor Carter Capps and Oliver Perez — primed to hold down the fort until the ninth when closer Tom Wilhelmsen would take the hill. But that paper caught fire — and not the good kind — en route to a handful of changes. Injuries struggles and demotions tore the pen apart and in turn lost many a winnable game for the Mariners. One of the biggest blows is that of Wilhelmsen’s struggles following what looked like a breakout season that could cement him as one of the better relievers in the league. Tom finished the year with a 2.50 ERA and a 2.89 FIP with 29 saves in 34 opportunities. Wilhelmsen started out well enough this year with a 0.75 ERA and around a 2.60 FIP through May. But that is when it all fell apart and his ERA and FIP ballooned up to 10.97 and 6.13 for the month of June. Tom has been up and down since never really finding his stride for a long period of time. He now sits with a 4.37 ERA and 3.76 FIP.