The pen can be mostly addressed from within. Kimbrel is obviously the closer. Then we have Hultzen, Wieck, Wick, Alzolay, Underwood and Mills. If you add an arm like Betances I think that could be the makings of a really strong pen.
They should pursue Cole aggressively. A rotation of Cole, Yu, Hendricks, Lester, with some combination of Rea/Mills/Chatwood should be pretty solid in a bridge year leading to the following year with Marquez, Abbott, Miller and other prospects acquired in a Bryant trade.
Castellanos should be pursued. I know Boras is his agent, but Castellanos career numbers don’t scream $25 million. I’m thinking $18-20 mill. Bryant should be traded. Maximize his value since he likely won’t be resigned and really shouldn’t be either. Sign Cervelli and move Contreras to left field or trade him. If he goes to left field then we trade Schwarber. Baez at 3b with MI of Russell and Hoerner for now. Some things aren’t ideal, but honestly this team probably isn’t any worse than this year and it’s a bridge year to getting prospects up. I think having a solid defensive catcher like Cervelli would help the pitching staff significantly too