Brewers are going to win the division. Ok, the Cubs may sign some guys to change that. But St. Louis? Baby Brewers over the collection of geriatrics in St. Louis any day. Add Sonny Gray, subtract Montgomery. Lance Lynn? Will be interesting to see what is higher: his ERA or his K/9. Both should be in the 5.something range. Kyle Gibson will give them innings, but he didn't have great numbers in Baltimore. Along with Mikolas, that's most of your rotation. Goldschmidt turns 37 this year. Oh that's right, Matt Carpenter is back from the dead (they are only paying him the minimum. Padres on the hook for the rest). That's 105 million in salary to those 6 players, average age 36.
(I ignored Arenado, because he's younger, I still think he is good, and he made my rant less effective.)