I'm not writing off Guerra just yet - he's pitched more innings this year than any prior year (and missed a big chunk of last year). He was effective until about 3-4 starts ago; I think he's just run out of gas. He may be more effective as a long reliever/spot starter though if he can't get up to 180 innings. As others have said, it comes down to Nelson. If he's healthy and ready to go, then you set your depth at eight major-league ready starters between the majors and AAA. In AAA the three backups are Peralta, Zack Brown, and one of Guerra/Wilkerson (and beyond that you have Supak, Webb, and perhaps Diplan). That leaves five in the rotation to choose between Nelson, Chacin, Davies, Anderson, Burnes, Woodruff, and Houser. If Miley is back, that's eight to choose from. I think at least one of Anderson/Davies/Chacin get traded, two if Miley is back. One of Woodruff/Houser starts, the other to the bullpen. Re: Woodruff - how many starting pitching prospects come up and put up great numbers right from the get-go? Not many. I see him as being a lot like Foltynewicz who took three years to adjust to the majors, and Atlanta is really glad they stuck with him as a starter. Woodruff may spend 2019 in the bullpen, but he'll get a shot at the rotation. Overall strategy - accumulate as much starting pitching as possible and trade the excess to upgrade at other positions or help restock the farm system.