Do you have a link to that? When did Danny offer him a 4 year extension?
Even if that is true, I don't think it's very realistic to expect Rondo to play for a couple million a year less than Gordon Hayward.
I used deductive reasoning where by the absence of a story that Rondo has signed the extension means that he hasn't signed an extension. I further made the leap that it is probably not the absence of an offer from the Celtics that is leading the lack of an extension.
PG Current Pay (for 2014-15):
Rose $19M
Paul $20M
Westbrook $16M
Parker $12.5M
Wall $14M
Curry $10.5
Irving $7M (set to go up to $18M per)
So the approx. $14M per is not happening, how high does Boston need to go and how well does the team need to play for him to sign in Boston?
Are you questioning whether or not Boston has offered the extension or that it will be difficult for a team in the middle of a long rebuild to sign him once he becomes a FA?