They've had a long long time to invest Jim. And chosen not to. Besides which, FFP does permit owner investment now, and stadium investment doesn't count against FFP anyway. There's been nothing stopping Joe Lewis and ENIC putting money into the club except their wish not to. And fair enough too, but I do find the pride of Spurs fans that they've been the ones paying for the club while the owner counts his billions somewhat bizarre. He and they and have done very nicely out of it, thank you, while you pay record prices for tickets.
Wasn't me who posted that!
For info, though, ENIC, have invested maybe as much as £100 million into the club over the past 15 years - mostly towards stadium costs. Nothing like your owner, of course, but better than a kick in the bollocks all the same. At least ENIC haven't taken money out. Spurs haven't paid a dividend for years. Levy does take a fat pay cheque but, given that he does two jobs (Chairman and CEO) pretty well and given the added perspective that Pochettino, Kane and maybe one or two others at the club are earning more, I'm okay with that.