What they should do:
1. When the safety car comes out, eliminate the lap delta times which mean cars can't catch up the rear of the train quickly enough.
2. As soon as the train has formed (as quickly as possible, see point 1) behind the safety car, make all lapped cars immediately pull to one side and drop back to the rear.
3. At safety car restarts, set the cars racing at controlled intervals to restore the relative time gaps prior to the incident.
4. Harder tyres - more focus on driver skill, fewer marbles and more opportunities to exploit different driving lines.
5. Stop forcing the drivers to start on the same tyre they qualified fastest on.
6. Tougher penalties, rigorously and consistently enforced, for gaining advantage by exceeding track limits.
7. Get rid of DRS asap.
8. Return to the 10,6,4,3,2,1 points system.
and most important of all:
9. SAME POINTS FOR EVERY RACE.