I'm comfortable with my rankings, but I did know that Rortvedt would come up.
Through some off-the-record conversations, I'm told that Rortvedt has really struggled with the pitch-framing portion of catching. For me, he's fantastic throwing and blocking and he's a really good athlete behind the plate. I also think that he works as well with pitchers as anyone. I also know that he has worked really hard on the framing, so I think that it's likely he will put up better framing numbers this year.
Jeffers, on the other hand, scores very well in the pitch framing numbers. Add that to his plus-bat potential, including power, and that makes for a really exciting prospect.
And as for Blankenhorn, I do believe in his athleticism and talent, and I think that he will hit. I may be totally wrong, but he's immensely talented and does have huge power potential and really good speed. I may be wrong. I mean, obviously a lot of these 20 aren't going to become MLB stars, but I'll still "buy" on Blankenhorn... while at the same time noting that I've previously had him as a Top 8-10 Twins prospect and now I have him as the #15 position player prospect (which theoretically probably puts him around #30 overall prospect). So it's certainly a big year for him.
I'm not someone who feels strongly on Rortvedt one way or another, but this does bring up an interesting question.
How much of a consideration should minor league framing be?
And when should it start to be important?
I'm pretty curious to see how Garver's numbers look this year after a month or two.
He was worth -10 runs last year according to Fangraphs' new numbers, but we've heard several times that framing was a specific offseason focus for him.
If he's average or better this year then I think we'd have to give pretty heavy consideration to the hypothesis that all it really takes to be a good framer is the willingness to work on it and amount of effort put into it (there already is evidence that as teams have become more aware of framing everyone has clustered closer to the average).
Basically it seems like the approach is mostly just to lower the stance and get a bunch of better calls on low strikes.
Maybe it won't be that simple, but we'll have to see.
It seems possible that it might be the kind of thing that players don't really need to focus on until AA or AAA once they have all the fundamentals down, then they put in a some time with their catching coaches and voila, average mlb framer.