The Phillies had two other veterans in spring camp in recent years who were released and went on to thrive immediately thereafter.
Ryan Vogelsong spent 25 games in 2010 with the Iron Pigs, where he struck out 73 batters and walked 40 in 58 2/3 innings before being released. He latched on with the Giants, made an All-Star team in his first year and has recorded a 28-18 record with a 3.29 ERA in 400 innings since.
There’s also Jason Grilli, though his case is a bit more curious. He signed with the Phillies in January 2011, had a 1.93 ERA and 11.8 K/9 in 28 games for Lehigh Valley, then was released. A journyeman reliever to that point, Grilli signed with the Pirates and has a 2.53 ERA and 12.6 strikeouts per nine in 105 appearances. This season, he’s 11 for 11 in save opportunities with a 0.83 WHIP, a 0.75 ERA and 18 Ks in 12 innings.
Hindsight, pure and simple. But things could have been different in the starting staff, bullpen or bench had the Phillies chosen differently.