I don't agree - at all - with the "best deal is the one not made" philosophy and I fear we're about to see why played out on the floor in the Atlanta series.
This team as constituted is NOT a championship contender, and I'd caution Celtics Fan against becoming enamored with it. Ainge is quite correct - moves are going to have to be made to upgrade the talent on this roster.
Al Horford is a talented player who would be an asset to the Celtics. Is he atop my wish list? No. But he is a definite upgrade over our inside game as it exists today. I wouldn't be upset if Ainge landed him - because this franchise is not close to 18, and Ainge needs to move it closer NOW. The window of "well, we'll stand pat because we can't fleece anyone" has closed. "Assets" aren't valuable if you can't parlay them into championship basketball.
I completely agree with you that this team is not a contender, and doesn't have the talent to become one. I absolutely concur that we need to add talent if we hope to become one.
The problem is, when you pay max contract money to fringe star players you end up overcommitting yourself financially, which tends to hold you back from ever becoming the caliber of team you hope to become.
Reason for this is that a max contract tends to take up up around 25% - 30% of a team's salary cap. If you sign a max contract guy, then you are essentially committing between 1/4 to 1/3 of your cap space to one man. If you sign two max contract players, then you are committing betweern 1/2 to 2/3 of your cap space into two guys. An NBA team needs 10-13 players, and when you have 25% - 60% of your cap space allocated to one or two guys, it doesn't leave you with a whole lot of "wiggle room" to build a team around those guys.
This is perfectly fine if the one or two guys you are throwing max money at are legit superstar players who carry your franchise to title contention...but it's a problem if the guys are middle of the ground fringe stars who are good, but are not game changers.
See, this team right now is not a title contender. If we were to take our current team (i.e. bring back all of the guys expiring next year) and also add Al Horford for $25m, we will become a better team...but we still won't be a contender.
If we want to add Horford AND a second max contract player, then it means we need to let a lot of our current players (such as Turner, Sully, Amir, Jerebko and Zeller) walk. That means adding Horford might not even improve our team at all - he might contirbute enough to make up for all the guys we have lost...in which case we haven't really moved forward at all.
That means the second guy we bring in for that second max contract needs to be an absolute game changer - of the Durant / Cousins variety - in order to make that Horford signing worthwhile and move us into 'contender' status.
Not lets say we get sign Horford and another max contract guy, and we still don't end up strong enough to beat Clevleand, San Antonio or Golden State. We're not at the cap, so we are in a position that makes it very difficult to actually add more talent. We are essentially capped (no pun intended) because we have no real means to improve enough to beat those teams.
This is why max contracts really should be reserved for legitimate game changing players. Unless a guy is capable of single handedly taking this team to contender (or [dang] near contender) status, it's not really worth throwing max contract money at said guy.
Horford is a nice player, but he's not the kind of talent who can carry a team on a nightly. He's not the type of talent who can transform a pretty good team into a contender - that's a big part of why the Hawks have never been a legit contender in the entire time Horford has been there. They have been a good team, at times they have even been a REALLY good team. But they have never been taken all that seriously as a contender. They don't have a guy on the team (Horford included) who can be that go-to guy, who can create offense from nothing, and who can put the team on his shoulders and carry them.
If we pay that type of money to bring in Horford, we put ourselves into that exact same predicament. We can make the argument that we are different because we have IT (who is a capable shot creator and can carry the team offensively) but in all honest, I still don't feel that is enough. If IT and Horford are our two best players, then we still don't have a hope at beating the Spurs or Warriors in a 7 game series. We need more than that.