Ok, I'll be the first to admit that I am no expert on the CBA, and I'll preface that I don't understand all the changes from the last CB to the current one, bu there is a topic i want to talk about that is important to our rebuild: Rolling Expirings.
This is a term i just made up for always having an expiring contract. It is very hard to get below the cap by enough to sign a max guy, let alone do it as still be kind of good. So it is much easier to trade an expiring max contract with some picks or cheap assets for a star on a max contract. This is nothing new.
Look at how we got Ray and KG. we had Theo and Wally as expirings. But How did we get Theo? We traded Raef Lafrentz for him because Raef was going to expire and we would get nothing.
So my point is that if Ainge cant trade Hump with some assets for a star, look for him to "roll over" the expiring. Maybe Hump at the deadline for a max bad contract player with an extra year and a pick.
The Celtics cn afford to hold 2 bad contracts and stay right below the cap while the showcase players, make trades to increase assets and sign cheap guys with potential.
Another option if we want to keep Hump(albiet for less money) is to trade Bass Lee and some filler for a max contract with 2 years on it. We just need to make sure that every year we have an expiring max contract to offer. What would suck is if someone really good is on the trading block and we have the picks and young assets but no way to match salary without giving a bad contract (many years)