You don't necessarily have to consolidate voters behind one candidate and pray that one candidate gets more votes than Collins (although that would be great).
In other words, voters who rank the Indie #1 and Collins #3 are more important than voters who rank the Dem #1 and Collins #2 are.
Anyone who is not Collins is your ally.
Use it.
1) Go scorched earth on her.
2) Welcome, don't trash independents.
3) Voters ranking Collins third matter more than voters ranking Democrats first.
Thanks for your time.