I'm going to say no for both of those prospects. Now, if you want to say Ayers for Detmers straight up, then I'll say yes to that.
The team that should go to a full sell mode will be the Miami Marlins. They're currently on a 11 game losing streak. So, if we're giving away Rojas and Ayers (let's just say those players), then I'm asking Miami for Sandy Alcantara over Detmers. We've seen what Alcantara can do, and he has shown flashes that he can do it. He goes deep into ball games. The stuff, to me, is still there.
For Detmers, it's a lot similar to trading Cease/Eloy for Quintana. We're hoping Quintana, an average pitcher at the time for the White Sox, can turn it around for the Cubs. He never did, and ended up having an average, yet long, career.
I know Alcantara had a rough patch in June, but he has around a 3.4ish ERA in April, July, and August. The K's aren't as high as in CY dominating years 2-3 years ago, but it's still a good respectable rate.