I'm kind of tempted to see if the Cubs could somehow pull off a hybrid strategy, where they sell off bullpen pieces and try to acquire guys who'll be around in 2022/2023 for the rotation. The pen has been ridiculously good, but I have zero idea how long this is going to last and I'm always leery of injuries when it comes to this sort of use. However, the Cubs also seem to have some promising bullpen depth at higher levels of the minors who could get called up and succeed. If someone's willing to offer a high level prospect for Kimbrel, a pretty good prospect for Tepera, or slightly warmed over corpse for Brothers, I'd be interested in that deal. Conversely, the rotation is butt and looks to remain as such for the foreseeable future without a meaningful trade.