Bennett has been with Brisbane since they entered the NRL in 1988. Even with my maths, that's 20 years.
In any job, that's a long time.
In sport, it's practically a lifetime.
And with coaches becoming an increasingly disposable commodity, I suspect that we will never the see anyone even get near Bennett's combination of success and longevity.
Bennett didn't just coach the Broncos, he built the Broncos. From the ground up.
The big question is where the man who has a track record second to none will end up next?
Bennett has already suggested he will carry on coaching, either in Australia or England.
Presumably, that will have alerted chief executives at clubs across the globe.
St Helens need a successor for Daniel Anderson, although Catalans' Mick Potter seems to be the front runner for that particular role, leaving a vacancy in Perpignan that Bennett may be more interested in, given his long standing commitment to expansionism.
In Sydney, which remains his more likely destination, Canterbury are one potential destination, although St George Illawarra - where Nathan Brown has been clinging on for a couple of years - would also be attractive suitors.
But, bizarrely, when you consider his record of harvesting Premierships, hiring Bennett would be a gamble for any club.
Like another old buzzard, Chris Anderson, Bennett spans two very different eras, and has a reputation for doing things his way or not at all.
Witness his refusal to make an acceptance speech when the Broncos awarded him life membership of the club at a glitzy bash last year.
In an increasingly corporate sport, that approach causes plenty of problems.
And just as Anderson has seen his star wane after unhappy exits from Cronulla and the Sydney Roosters, I wonder whether Bennett may encounter the same difficulties away from Brisbane.
Perhaps going out at the top would be a better option.
Then again, I wouldn't bet against Bennett making me eat my words over the next few years.

LET'S not beat around the proverbial bush.
Former Halifax chief executive and current Rugby Football League head honcho Nigel Wood is well, er, big.
And while I would never be as discourteous as a well known Australian journalist who penned a piece headlined "The fat controllers" a couple of years ago, I think everyone knows what I mean.
Bearing that in mind, Nigel really ought to be more careful when he chooses his words.
In a recent interview, he was talking about the problems of expanding Super League from 12 to 14 teams, an upheaval he labelled as "probably digestible" as his thoughts drifted towards food.
It must have been getting near lunchtime.