It will be interesting to see how teams like the Astros and Cubs handle their aging SPs.
I fully expect the Cubs to do the smart thing and let Arrieta walk. The problem is they replaced him with Q, who is good, but not Arrieta of a couple years ago great. They paid big money for Lester's decline, and are already seeing him start to fade going into his age 34 season with 3/85 or 4/100 still owed to him. Trading away prospects for BP arms and signing 30+ year old SPs to 9 figure deals isn't sustainable for any team.
Playing the now vs future game is tough, but I think the Cubs have leaned a little too much into the now.
Of course, one of these big market teams is going to get an Ace in Ohtani for essentially nothing and completely tip the balance in their favor, but I don't think any team is counting on winning that lottery as part of their long term plan.