Ainge decides to "go for it"
Get what the Celtics have and do whatever is necessary to get better and beat GSW.
What is that? If...
Irving
Brown
Hayward
Tatum
Horford aren't good enough?
Trade evey asset including one of the above to get a guy who makes the Celtics good enough to win the title.
Ainge is supposed to wait? For what? Irving to leave? Someone else to get injured? Another team to assemble the "next GSW?" Draft more rookies that "need three years to be any good?"
Ainge has a cheap bench, a great coach and one of the greatest sports franchises in freaking history. Just go get the next "first or second best player" to win it all.
He's got one of the best destinations for a player who wants a ring. Where else is there? GSW? Rox? Philly? Pile up the draft chips and all your roster and beat Durant and Curry next year because, if you don't?
No one else will.
As he sits, barring catastrophes, Ainge's team is in the NBA finals next year. If those five players aren't the "ones"? Then go get them for crying out loud! It's called a cell phone, use it.