I think clubs competing in Europe sharing resources (better than they do now) would be a great idea. Unfortunately the prize money for being in the qualifiers only really covers the cost of competing (travelling etc) in most cases although we get the benefit of bigger crowds than we would for a Betfred cup fixture against Peterhead in fairness.
The remit of the SFA/SPFL is to maximise Scottish football. They are not interested in a more competitive league, a strong tv deal, european money coming in contributes to their measurment of maximising Scottish football, the competitiveness of the league does not.