The thing is - the injury forced his hand and wasn't some kind of brilliant tactics. If he didn't introduce Sissoko he might have been 2-0 down at HT. He should've been 2-0 down at FT even with him, but that's another matter. Spurs were utterly clueless in the final third last night.
They spent 250m under Poch. Hardly nothing.
Once again it seems that I'm going to have to address this spend thing that constantly get bought up as a stick to beat Pochettino with which is simply bizarre. Pochettino's net spend since he arrived at Tottenham is £29m based over 5 years, the reason you need to take net spend into account is because it generally means you need to sell players to buy.
Even if you want to focus on his spending for the sake of some inane argument, he has spent £262.8m in his time which is considerably less than than their nearest spenders Everton and Arsenal:
Man City 760m
Chelsea 735.1m
Man Utd 594.5m
Liverpool 583.5m
Everton 400m
Arsenal 385.7m
Spurs £262.8m
So whilst you may think it's right to dismiss it as 'hardly nothing' you can still make the case compared to their rivals.
But again this is just a myopic argument designed to put Poch in a bad light, generally if Spurs didn't sell players then the buy column wouldn't be as high regardless so it's complete nonsense to bring up his spend as some sort of negative.
In regards to last night though Spurs, yes looked clueless going forward it has to be said but that's kind of what happens when you have Kane and Son missing (that's 44 goals taken out the team) And no attacking subs on the bench.