I can't help but feel that professional sport hasn't prepared either of them well for retirement.
When I retired from the Black Ferns, it left a huge gap in my life. Luckily, I had a career and other interests to fall back on.
I was still passionate about rugby, though, and everyone expected me to step into coaching naturally.
Everyone assumes that elite athletes and leaders on the field will make great coaches but that's very rarely the case.
Don't judge Tana for taking on Toulon despite his lack of experience - would many of us be able to say no to a massive pay cheque surrounded by people telling us we're great?
I just hope his dismal performance so far doesn't tarnish his coaching reputation for good.
Mentoring is a must as a coach (as I've learned) and app-ointing mentors for Umaga at the 11th hour may be a little too late for the team.
I also think Tana is making a big mistake playing for the team he has been trying to coach.
The Toulon supporters (and players) may be chanting "oh no Umaga" if he can't deliver as a player as well as a coach.
How does he expect to gain respect from the players if he doesn't deliver? Surely making a comeback after two years without being game-fit and contact-hardened is a big ask.
I even think it's asking for a miracle to see a bit of magic from the Little General after one year out of competitive league.
In that year off, Jones dabbled in coaching and mentoring with the Warriors.
Was that not enough of a fix for him?
Are the identities of these men so tied up with their athleticism that they can't let it go?
Some athletes, like Sarah Ulmer and Hamish Carter, appear to make the transition seamlessly. Everything they endorse turns to gold.
Mind you, any athlete who wins an Olympic gold medal is set for life, unless they test positive for doping.
All New Zealand sporting organisations need to ensure that their elite athletes, from whom they have got their pound of flesh for many years, are prepared for retirement.
The Academy of Sport, New Zealand Rugby Union and New Zealand Cricket have programmes in place but it looks like some athletes don't utilise them.
Reality check to all athletes contemplating retirement: life after sport is rewarding, challenging, frustrating and every now and then it sucks, but that's life.
Build a bridge and get over it, and once you commit to it you'll be rewarded.
You can always play social sport.
