X 2
I believe the Reds missed a golden opportunity last year because one of the top AL contenders, Tigers, had such a deficiency in this area and an owner who is desperate for a World Series ring before he dies. The Reds would have received a high return for Chapman.
The ability to remain a top closer seems to be very elusive for many pitchers, so when you get a guy like Chapman that builds up sooooo much value on velocity (which is also an ability that seems to fade fast), to me it's a no brainer to try an move those guys for a high return..... a classic sell high scenario.
It was a pretty unpopular opinion last year because of Chapman's dominance in that role, but I believed and still believe that the talent level in the BP is high enough that you could have converted another RP to the role without assuming too much risk.