I, for one, am not sold on him being a $400,000 per year player yet.
The talent is clearly there, but he has obvious, glaring deficiencies in his game, which may continue on (who knows).
Personally, I wouldn't be fussed if he left - Lomax is a better centre at this point in time, and he has also proven to be an elite-level talent on the wing.
It's not out of the realm of possibility that Lomax would make a fine fullback, too.
I'd be happy to keep Talagi, but won't lose any sleep of he chooses to leave.