Spurs weren't in a financial mess, the player extended his contract - yes they gambled on it but it worked but financially can we afford that gamble.
And most importantly what Kane offered them by keeping him was worth the risk what Richy offers us isn't imo, sad to say as love the guy BUT Sours sell Kane they cannot replace him or close to doing so and it wouldn't greatly effect their incomings overall in quality just maybe numbers. For us no sale restricts us massively
Spurs had the ability to spend still - we really don't