With regard to the big MLE or TPE, that obviously depends a lot on Horford, both in how we perform in the postseason and also possibly what Horford wants to do. I don’t think he’d be up for a pay cut to save the owners money (nor should he with how he’s been playing), but I can seen him being willing to resign for the minimum if the front office presented him with the situation that “We can sign player X for Y dollars, but doing that pegs us to the hard cap, and we’re over it if you don’t take the pay cut.”
To be more specific, if Al were willing to be waived and resigned for the minimum, the Celtics would have about $10 million in space under the hard cap for a free agent if they filled out the rest of their roster with minimum salaries (including at least one second-rounder). If they trade Nesmith and are willing to go with 14 players for most of the season, they could get a free agent in a S&T starting at around $13 million.