Those milestones are great but teams are trying to win games.He really should retire. The only real numbers he can probably eclipse this season is 3500K's and maybe 225 Wins. Which aren't bad for book ends if you ask me.
Same with Verlander a solid shot to get the 3500K's milestone, but he'd need a pretty strong year to get to 275 Wins.
Maybe to some degree Verlander and Scherzer have earned the right to stick around, but they probably don't deserve to be starters based on actual performance these days.