Here is a result for middleton and his equivalent contract as of today would be 10.73 millions.
Well, that's not necessarily true. Maybe it's equivalent in average terms, but he'd receive the equivalent of $14.1 million next year. That would put him as the 30th highest paid player in the NBA (compared to this year's salaries), more than guys like DeMarcus Cousins, Tony Parker, and Steph Curry. The only non-superstars making more than him are generally the guys where you say "yep, he's overpaid". It's certainly not the going rate for a starting, non-star wing; just because Dallas overpaid for Parsons doesn't mean other teams should follow suit, setting a new market for non-top tier talent.
This offseason, it will become the going rate. We won't be able to sign this year's free agents at last year's numbers.
Except of course for the years where the cap hasn't exploded. You know, the early years where the Celtics are still in the "add more talent" phase.
That's where overpaying (which this would be) hurts the team. (unless you want to wait those couple of years until the cap explodes to continue the talent adding phase)
If we aren't willing to pay enough to sign a quality free agent, then we haven't succeeded in the "add more talent" phase.
My opinion is that no one is going to want to take our offer if we are offering a deal that favors the C's. If we are unwilling to outbid or at least match on some players this summer then we will end up with no one. I'm not interested in saving our cap flexibility for next season, because more teams will have cap space and our flexibility will thus be devalued by the market.
Honestly as long as the C's are able to improve their play at the 3 and the 5 I will be happy. If they can trade for players that fill those needs on contracts that are more reasonable than the ones we would sign a potential free agent to, all the better.
What I am wary of is, refusing to go the extra mile on a free agent after exhausting other opportunities and coming away with no quality talent added this summer.