He would pretty undoubtedly play at 15.
J Lance is a loyal journeyman with great attitude and (mostly) sound defence. That's it, he's not good enough to really optimise the Reds' attacking potential when an outstanding 15 is called for in broken play and on the counter.
If the Reds are truly serious about 'building to greatness' and their like slogans of admirable ambition, we will need (at least) (a) a better, faster, longer-kicking 15 along the lines of a Mogg and (b) a far faster and more attack-skilful 13 with better hands than A Fainga'a.
IMO, we are not an optimised attacking backs unit for the competitive threats and improved attacking skills we're seeing in the current S15. One of the reasons our BP and PD counts remain relatively low. I remain concerned that too much of the Reds' strengths and attacking ability rests with Horwill, Genia and Cooper 'all having good games at once' vs a more decentralised and somewhat broader capability that I think, for example, the Brumbies and Chiefs possess today.
Anyone seeing JO'C cut the Cru up today will understand what a great addition he could be to the Reds at 15 - subject to cultural and behavioural concerns from his past.
The Reds will need to be ruthless and tough-minded re 2014's team construction if 'when greatness calls' means more than 'we can only win when Horwill, Genia and Cooper are all on the park'.