Of course it's mathematically possible, but I think in order to be realistic we'd have to start going about 2 points per game, which we've shown no sign of doing. The last time we went from mediocre to around 2 points per game is that January window we brought in Sturridge and Coutinho (we still didn't finish top 4 mind). I don't think we'll be bringing in any attacking talent this window, although I'll be happy to be wrong! At the moment our goal difference is -2, Spurs are 20+. Meltdowns and major upturns would need to happen to make it even remotely possible. I wouldn't like to gamble it but UEFA Cup is probably our best bet for a CL spot.