I don't have a strong opinion on this one but Neto is #2 in save % and #4 in goals allowed per 90 minutes in La Liga (I don't easily see distribution statistics, accuracy, etc). Is is it possible he could be no worse than equal to JC, and maybe better? Find it a little odd Neto would want to go from a starter on a CL team to back-up. But maybe he wants to win trophies and watch Messi day to day
while JC is doing the reverse.
I don't see the big deal in the swap, and if it greases the wheels for Denis, I can understand it more. Rafinha I am more OK to keep around because if he can ever stay healthy he can be an OK bench player for Barca and 2nd maybe enhance his value for a transfer. As it is his fee is lower coming off an injury.