He was complete crap long before they did that. He hasn't been even mediocre since April. Also, this has been the same pattern Jake has had the previous two seasons in Philly as well. His first 5 or so starts were good but then he had nothing the rest of the season. That's what he's done here.
Now, I think the sticky stuff changes have destroyed the Cub's bullpen which is why half those guys can no longer get anybody out.
I’m sure the Cubs have a couple impacted by sticky stuff (I’m suspicious of Nance, but we’ll see), but I don’t think it’s been a holistic problem. Even in the losing streak, the losses have been largely due to starting pitching or bad offense. Where there have been bullpen problems, it’s been limited to Tepera (maybe hurt, maybe sticky stuff, maybe just fatigue) and some others that haven’t been part of the core guys. Half the losing streak has been games where the team gave up no more than 3 runs. I can’t say the pen can no longer get guys out.
6/25 LAD, L 2-6: Arrieta somehow not a train wreck, but offense only posts 2 runs and Tepera and Nance give up 4 in the 8th. This was the first time in 37 straight games that the bullpen took the L.
6/26 LAD L 2-3: Cubs again with a late 2-2 tie and Keegan Thompson gives up a walk-off HR to Bellinger. Cub pen with only the one run given up in 4.2 innings.
6/27 LAD L 1-7: Alzolay gets jumped early and the Cubs never had a chance against Kershaw. Bullpen gives up 1 run in 5 innings.
6/28 MIL L 4-14: This game was blown with a 10-run 8th from Tepera and Megill and Tepera went on the DL just after. We’ll see if he regains form.
6/29 MIL L 1-2: Davis gives up 2 runs early, the pen throws 4 scoreless and the Cubs lose 2-1.
6/30 MIL L 7-15: Everyone is a train wreck. Jake can’t protect a 7-0 lead and basically everyone in the pen implodes as well.
7/2 CIN L 1-2: Mills is solid and the bullpen throws 2.1 scoreless, but the Cubs can’t score.
7/3 CIN L 2-3: Alzolay throws 7 solid innings, pen throws 1 scoreless, but the Cubs can’t score.
7/4 CIN L 2-3: Hendricks is very good, but Winkler sucked. After that, it was all zeroes from the Cub pen, but the Cubs only scored 2 again.
7/5 PHI L 3-13: Pretty bad all around. Not much offense, Davies was just ok and the bullpen struggled.
7/6 PHI L 10-15: Jake was horrible and Williams was also bad in his first appearance off the DL. Those two allowed 14 of the 15 runs.