It's relevant when they pitch the same amount of innings and we're told one can't be in the rotation because it would take too long to get stretched out. That obviously wasn't the case as Hector had no problem getting ready to start the second game of the season.
If it's familiarity or the need to see him pitch I already pointed out that this is essentially the same FO that has watched Berrios the past few seasons. I've already touched on the ST aspect.
If lack of MLB success/experience was the determining factor then why was Mejia the 5th starter? He had basically no MLB experience and the few innings he threw didn't go well last season.
Obviously I wanted him to start the season with the Twins. It was disappointing that he didn't but I was a little excited to see Mejia as well. Honestly, I don't think Mejia was given enough rope but they made the call to send him down. From that point on, the 4 man rotation and the Tepesch start were just asinine.
You can't compare Santiago and Berrios. For one thing, Santiago pitched well in the WBC and Berrios got lit up. For another, Santiago has been through 8 or 9 spring trainings, he knows how to get his body right. Berrios doesn't. And finally, if Santiago is pushed too hard, the Twins don't care that much, he isn't an integral part of the future like Berrios.
The lack of big league success is not the factor either. Otherwise Vogelsong would have had the job. Mejia's path also isn't the same as Berrios' path. He was there the entire spring and won the job fair and square. He ramped up the way the Twins want a younger guy to do and he really earned that spot. Berrios would have been getting the spot based on reputation and placating fans. No way he should start the season in the rotation. Spring training stats don't matter that much but the spring training process is vital, particularly for young pitchers.
I also disagree with the "4 starters is stupid." There's a value to giving guys the ball every 5th day. Yeah you want to sprinkle in some days of extra rest but you also want guys to have a rhythm. You would have gotten less Ervin starts to begin the year, not sure how that would help.
The only start that was dumb was the Tepesch one. But even that may not have been that dumb - I'm glad that Berrios got to debut against the Indians on the road instead of the Red Sox at home. That Red Sox lineup is fierce and if Berrios had a hiccup his first time out, I can see not wanting him to get booed by the home fans (if he'd been knocked out early, Twins fans would have booed him). He's young and an emotional guy, they gave him a chance to breath if he had a bad first game. It's not like he has a home in the Twin Cities, he's essentially on the road either way.