With a day off between games and inspired by the BA low A prospect list having 4 of these guys in their league top 15, I will do a quick run at an organizational rotation update. This will include everyone but CC (the only FA, I think) and is a guess as to where the organization would be going into next March if they did not add or move anyone before then. This is also focusing more on the prospects than the inevitable org filler guys, but there are a lot of prospects to fit in.
Paxton
Severino
Tanaka
German (once his suspension ends, presumably)
Happ
Montgomery
AAA: *Michael King, *Deivi Garcia, *Nick Nelson, *Albert Abreu, Adonis Rosa (guessing they move Loaisiga to the bullpen, but he would be here if not)
AA: *Clarke Schmidt, *Trevor Stephan, *Miguel Yajure, Rony Garcia, Shawn Semple, Nick Green (*Garrett Whitlock)
A: *Roansy Contreras, *Luis Medina, *Luis Gil, *Alexander Vizcaino, *Frank German, Janson Junk, Glenn Otto
low A: *Yoendrys Gomez, Jio Orozco, Harold Cortijo, Jhony Brito, *TJ Sikkema, Josh Maciejewski (*Matt Sauer)
I don't know how exact that is, and that is focused more on the higher ceiling guys than the others but that is a lot of starred talent. Schmidt could push his way higher pretty quickly, but he only had five starts in AA this year. He got hit in the first one but then the last four he had the ridiculous combined line of 24.1 9 1 1 3 27. Also he only had 100 innings last year and is 23, so they might start him off slowly. That also might be too aggressive for Abreu but he spent the whole year in AA this year and it will be his third year on the 40 man so they need to see what they have already.
But yeah, 15 prospect SPs for their top four farm teams (maybe 14 if Sikkema stays in short season or becomes a reliever, but he was drafted as a 'fast mover'), all are in NY's top 30 list on mlb.com with profiles if you are curious about any.
http://m.mlb.com/prospects/2019?list=nyy
Also still hoping Freicer Perez reappears at some point, as the descriptions of him were tantalizing (a 6'8" guy who could hit 100 and had good offspeed stuff) but he had injury issues and I don't see any recent updates on a quick search. He was one of NY's top few pitching prospects coming into 2018, he is still just 23.
I haven't done an organizational rotation update since early May (below for reference) and NY has had a bunch of big prospect promotions recently, so I will do it again, for my own reference as much as anyone else's, heh. As before, guys in parentheses are injured and placed where I think they slot in if healthy.
Tanaka
German
Paxton
(Severino) (once he gets up to 4-5 minnings)
Happ
Sabathia
Green/Cortes Jr. pairing
AAA: Adonis Rosa, *Michael King, *Nick Nelson, Brian Keller, Brody Koerner ( *Deivi Garcia and Chance Adams moved to the bullpen today for the remainder of the season, Rosa is first just because he is on the 40 man already).
AA: *Clarke Schmidt, *Albert Abreu, Rony Garcia, Shawn Semple, Nick Green (*Trevor Stephan, Garrett Whitlock)
A: *Luis Medina, *Miguel Yajure, Frank German, Alexander Vizcaino, Janson Junk, Glenn Otto (*Luis Gil)
low A: *Roansy Contreras, Jio Orozco, Harold Cortijo, Jhony Brito, Josh Maciejewski, Yoendrys Gomez (*Matt Sauer)
A lot of exciting years from top guys on this list making big jumps forward, mostly very young still: Deivi (20), Gil (21), Medina (20), Schmidt (23), Roansy (19), Yajure (21). Unfortunately all but Schmidt/Roansy are rule 5 eligible and NY will need to protect or move the other four there or risk losing them, easy to stash a high-ceiling arm as the last guy in your bullpen in a non-contending season. Yajure is the lowest rated guy there but he has dominated high A this year at 21, a 2.26 ERA in 127 innings and he is touching 97 now reportedly.