£15m for Spence = good deal (for us)
£15m for Jones = not a good deal (for us)
Peak Jones was way better than peak Spence last year, as we all know, so why would we take the same money, when Jones is clearly happy, and Spence clearly isn't?
I think Jones did get a bit burnt out last year mind, but we did put a lot on his shoulders, and the opposition knew it and tried to stifle him, and he was possibly also carrying a few knocks.
If we get some more of a threat on the LH side, then we could reduce Jones' workload, and also likely stop opposition from trying to tactically nullify him.