You would have to rely on token farming more than anything else, watching videos for boosters/tokens. I'm considering returning back to non token buyer. But this will soon bring my team quality back to the pack and being a high-ish level now it will be difficult for me to actually win anything. I'll have to accept that and start to enjoy the game for what it is.
Token farming would net you approx 200T/season, a lot better than trying to work on 35T/season. It would be next to impossible at L20+ on 35T/season. with 200T/season I would be able to keep buying a few optimum scouts at the beginning of each season.