The Cardinals have been pretty successful with bringing future starters and using them in the bullpen. The injury history listed doesn't entirely correlate with that process, imo. Wainwright broke in as a 23-year-old with two short relief outings, a total of nine batters faced. He came out the bullpen 61 times the following year, then became a front-line starter the last 9+ seasons, with at least 198 innings pitched in seven of them. He only had 20 starts in '08 and suffered his severe injury in '15. his age 33 season. This after pitching a total of 568 combined innings the previous two years. Garcia broke in at age 21, with 1 start in 10 appearances to go with 106 innings in the minors. To support your point, he only made 8 starts (9 appearances) the following season. He made 60 starts over the next two seasons and then battled injuries in each of the next three seasons. He had 30 starts last season and 10 so for this year. Wacha arrived in 2013 after 15 ML starts. He made 9 regular season starts in 15 total appearances and 64.2 innings worked. He then racked up another 30.2 innings in the post-season, going 4-1 and was the MVP of the NLCS. Like Garcia, Wacha was injured the following season, with 19 total starts.30 starts in '15; 24 starts last season and 3 games in relief. ) starts this year. As a 22-year-old, Rosenthal arrived in '12 after 20 minor league starts and 109 innings. He pitched 22 innings out of the pen in the regular season followed by three scoreless innings in the post-season. As a major leaguer, Rosenthal pitched exclusively out of the pen. In his 6th season, he has a 162 game average of 68 appearances, 68 innings, and 25 saves.His injury came last season, holding him to only 40 games, but he is right back to form this season. Also, Carlos Martinez broke in at age 21 as a spot starter for two years after being a minor league starter. He has transitioned into an ace starter with no injury issues. Alex Reyes was 4-1 last year, with a 1.57 ERA in five MLB starts and seven relief appearances at age 21 plus 65 innings pitched in Memphis.He had 73 minor league appearances, all of them starts. He's a TJ patient. He was the #2 rated prospect in the MLB. Marco Gonzales was scheduled to pitch in the Futures Game in '14 at age 22 but was scratched when he was called up to fill in for an injured Jaime Garcia-. He ended the regular season with 10 games, 5 starts, 34 innings, and a 4.15 ERA. Like the others, he pitched in the postseason that year. He battled a shoulder injury the following year but did get a September call-up. He then missed last season with TJ surgery. He was the Cards 5th rated prospect. Shelby Miller and Joe Kelly are the only other examples I can think of. They both were minor league starters that come up as spot starters, Shelby at age 21, Kelly at 24. And like Wacha, Martinez, and Lynn, they too went on to pitch in the post-season in the first year they were called up. Miller has gone on to average 33 starts a year. Kelly started 15 of 37 appearances in his second season, then became a full-time starter for two seasons and 42 total starts. Chris Carpenter missed nearly all of his final season in '12 after leading the league in innings pitched in ´11, but he was 37 years old and had already worked back from four previous injuries in his long career. He ended up having a rib removed and returned to pitch 13,2 post-season innings, giving up 4 earned runs. Conclusion: mixed bag, but a successfully mixed bag. The Cards have always managed to develop outstanding young pitchers to augment a consistently strong starting rotation. I don't think any other franchise can match them. Because they are so often in the post-season, they have an extra incentive to use their outstanding starting pitcher prospects in the bullpen to start their careers. That isn't the case in Minnesota at this time. So after throwing all these stats out, I'm not convinced one way or the other. I´m a true blue loyal Twins fan, but I take some solace in following the Cards in the NL. It´s much less painfull.