DH - Stanton - fine, some injuries
RF - Judge - good
3B - Urshela - 105 wRC+, probably what was expected reasonably speaking
SS - Torres - 106 wRC+, they will want more power but he's at 1.4 fWAR and playing good D per the stats so not sure Yankees fans should get greedy on him
2B - DJLM - huge disappointment, hilarious, he is the Rockies version of himself again. K rate way up too. Hopefully this is the new old DJ.
1B - Voit - big injury loss so far. should be a big boost when back and healthy
LF - Frazier - huge disappointment, looks like a replacement level player, the breakout in 2020 was a mirage?
C - Sanchez/Higashioka - Yankees should count their blessings that Higashioka exists and Sanchez has been useful. Pretty obvious that Gary Sanchez is now a Rob Deer type catcher and nothing more.
CF - Gardner/Hicks - this is just poor roster construction, right? Why are these old farts your CF tandem in 2021?
In summary:
Some bad luck but also some poor roster construction and, more than anything, an overreliance on your own genius and a series of breakout players.
Regression to the mean is a powerful thing. Odds were that not all of Urshela, DJLM, Voit, and Frazier would sustain their breakouts. Probably should have traded Urshela and not committed to DJLM and instead moved to get younger and more athletic. Worst BsR in baseball!