NBA exec reportedly believes Jaylen Brown is ‘all-in’ on the Celtics

Jaylen Brown's been the reported centerpiece of a Celtics trade offer for Kevin Durant.Jaylen Brown’s initial, or at least initially presumed reaction, to the reports that Boston offered him in a trade for Kevin Durant didn’t look well for the Celtics.

The star wing tweeted “Smh” in the hours following the report, starting speculation that Brown might want out of Boston and leave when his contract expires in 2024.

An executive from another team though doesn’t believe that’s the case. The executive told longtime Celtics insider Steve Bulpett that they believe Brown wants to be in Boston for the long-haul.

“I think Jaylen IS long term,” the executive told Heavy.com’s Bulpett. “If they want him…