I agree, and my point is that Swihart got way more chances than the average prospect hitting under .700 almost every year at whatever level he was at. To choose this case as the one to blame management is, to me, about the worst choice one could make.
Most teams have moved away from the tradition of giving the athletic type of prospect more leeway and chances, and for good reason. Athleticism is not always a good criteria to use for a prospect, and probably less so for a catcher.
Swihart's first full season was at age 19 at Greenville. He hit .702 in 378 PAs. He improved at A+ ball in 2013 (.794 in 422 PAs), but that was not really eye-opening numbers.
His best moment was in 2014, when in AA, he hit .840 in 380 PAs, and this is when all the hype and hope began. I was one of the many Sox fans with high hopes at that time. He had a strong arm, a quick release time and even showed some power with 12 HRs in 347 ABs. That year, at age 22, they called him up to AAA for 71 PAs (.659 OPS). His .810 overall OPS in 2014 remains his brightest season.
We all know what happened in 2015. Surely, a catcher with just 18 games in AAA and just over 300 in all of his years in the minors is not usually called up to the bigs, especially as a catcher for a team thought to be a contender at the start of the year.
I can see how a .712 OPS that year in 309 PAs looks encouraging, considering the circumstances, but it is not great. What is often forgotten is the fact that we sucked with Swihart as our starting catcher, and I think management had serious doubts about his ability to handle a staff. Here are the CERA numbers for 2015:
4.51 Swihart (35-43 in his starts)
3.47 Leon
4.58 Hanigan
(43-41 in starts by Leon + Hanigan)
Swihart also hit just .714 in AAA that 2015 season (80 PAs)
The 2016 season began with Swihart as our starter, with Vaz maybe not quite over his injury. Swihart was yanked as the starter very early that year, and that's when all this debate started. I feel they knew Vaz was going to be the starter all along.
While Swihart had a respectable .720 OPS that year in just 74 PAs, his CERA was a distant last place out of the 5 catchers we used that year:
5.71 Swihart (224 PAs)
4.27 Vaz (1860)
3.90 Leon (2502)
3.72 Holaday (357)
3.55 Hanigan (1130)
This was the season Leon hit .845, so there was no way Swihart should have been catching more. BTW, he hit .655 in AAA in 2016 (122 PAs)
2017: .539 at AAA (212) and .575 in Rk league
2018: .613 in BOS (207 PAs)
2019: .581 in 40 PAs
I could post the CERA numbers over these last 3 years, but I've already done that over a dozen times. They were not good.
In short, Swihart looked very promising was back in 2014 at Portland. He hit okay when called up early to Boston. Other than that, he did absolutely nothing to distinguish himself as a keeper, and yet we kept him on board.