I definitely agree with Kirilloff. Hasn't worked the count, and has fouled off fastballs down the middle and just rolled over on other pitches.
Wallner is harder to judge because Ks are always part of his game. I think he's been better at working the count, but ultimately he's just been whiffing on breaking stuff too much.
Watching Jeffers I genuinely do think he's having good at bats. You can't scout a statline in such a small sample. He had a barrel to dead center and another 110 mph ball almost through the infield today. And two hits off Verlander. I honestly think he's taken better at bats than Lewis, Lewis has just ambushed a few pitches, which speaks to his talent.
I would have expected Vazquez to be a defensive replacement by now at some point, but I still feel much better with Jeffers in the lineup.