Honestly, I would trade Flowers and keep Recker. From what I have seen he is great with the young guys and frames very well. His offense is a bonus. I say get a lefty platoon partner that can be used and then try to develop/trade/draft for a younger future catching star to take over in 2-3 years. I like Flowers, but he has been horrible at throwing base stealers out.
He does not frame well at all. Recker has had a nice offensive run in less than 100 PAs, but he is not a good framing catcher. He is currently at -3.6 FRAA in 22 games, which translates to an atrocious -26.5 per 162. He was similarly negative in all prior years as well.
For comparison from this year (which appear to be pretty consistent with prior years):
Castro: +13.3 in 91 games, +23.7 per 162
Flowers: +9.6 in 59 games, +26.4 per 162
Mac: +4.7 in 100 games, +7.6 per 162
AJP: -7.4 in 74 games, -16.2 per 162
Wieters: -8.7 in 95 games, -14.8 per 162
Ramos -5.3 in 107 games, -8 per 162
Guys like Castro and Flowers are elite, while Mac is a good pitch framer.
Guys like Recker, AJP, and Wieters are disasters behind the plate, while Ramos is merely a bad pitch framer.
I would like to keep the terrible pitch framers away from a young rotation. The offseason targets for catcher should be Mac and Castro. Recker should be stashed in AAA if possible.