Realistically there's around six or seven sides that could win the league next year if they have a good window, including Spurs. The odds shouldn't be that far apart for those sides either.
@GlastonSpur You should probably take a step back and wait to see how next season starts. It might look good for Spurs at the moment but it can all change very quickly. Mourinho with a couple of smart signings could get United above Tottenham challenging for the league in no time and then you're going to get everyone quoting your posts from this thread. Of course you can't write Spurs off given how strong your very young squad looks but writing off United because they finished four points behind Tottenham and won the FA Cup (despite Van Gaal's short comings) is naive.
Pochettino still hasn't won anything yet and whilst this season has been very impressive, he still has a lot to prove. Finishing third and being in the Champions League is great but Spurs need to win a trophy and prove that they can do that regularly before they can really be considered as one of the big sides. You can use us as an example for how it can all fall apart. We finished second two years ago and United finished seventh, yet found ourselves behind them again the following season.
United are like Real Madrid and Barcelona. They can have a tough two or three years here and there but they'll always find a way back. That's Ferguson's legacy and it's not something Tottenham have ever had in their history, which is why you should hold off from writing them off like you're doing in this thread and see what happens. Spurs could very easily end up out of the top four next season whilst Mourinho lifts the title at United.
I do think Spurs have a good chance of competing for the league next season but then so do United, so lets see what happens.