Great opportunity for the SPL to get rid of the awful split. The 11 remaining clubs should go as they are, remove the split and meet each other 4 times, giving 40 matches instead of the present 38.
This would give them an extra home match (in some cases two) and the guarentee of two vists from Celtic. This would go some way to compensating them from the impact of losing rangers.
The final quarter of fixture would need to be constructed accordingly with the team in the middle of the table taking on part in the final round of matches.
Just a thought.