This is what I'd do, that way, hopefully, you'd get 2 excellent STs playing well. If this doesn't work then go with Saransh's suggestion in subbing him on every game. That way, they'll have similar condition if you have 2 or more games a day.
So would there be no need to convert him into a AMR?
How about playing an MC in any wide diamond corner? I still dont know what to do with this guy, I make a n00b mistake in spending 15T on him from U21 and so far he only plugs in when needed and friendlies.
Selling him would mean EVEN more waste to the tokens spent