Jeffress doesn't K 2 batters per inning like Miller and Chapman. That's the difference. Jeffress is a nice 162 game player. These teams, right or wrong, have perceived guys like Miller and Chapman to be massive difference-makers in the playoffs. Jeffress is "just a guy." He's a good one that will be valuable over the course of a season, but there are 30 Jeffresses in the league and another notch of 30 guys that aren't a ton worse. Chapman and Miller belong in a class of maybe 5 relievers. If given the choice of dumping a bunch of prospects for Chapman for 1 year or a "pretty good" reliever like Jeffress at a fairly affordable contract for 3.5 years, most of these title-hungry teams will pay even more for Chapman and try to fill in the void of finding a "solid" reliever next year. Relief pitching is a very year-to-year thing. The issue is that teams aren't willing to pay for the extra control. Most of them don't care enough about the 3 affordable years remaining to give up an extra prospect. They'll pay more for this year or add more to the pot if it's Miller...not Jeffress. Thornburg seems really underrated. He has a career ERA under 3 and if you look at his numbers this year, they're remarkably similar to Chapman. Now I'm certainly not saying he is comparable, and I realize what you are saying about the value of 'elite' relievers vs. 'very good' relievers. I don't agree with it, I think it's a major market inefficiency, because when you compare all the guys and break down the numbers, the differences aren't significant, but it doesn't matter what I think. It only matters what GMs think. That said, I do think our top relievers have good value; good enough to where one or more will be shipped as a significant package today, hopefully. We'll see.