I think that when the title was absolutely definitely out of sight, last season, Spurs just gave up, they just didn't really care about anything else, and that's why they finished third. Nobody expected them to finish that high at the start of the season, and had Leicester not won the league, everyone would be saying how good their season was!
Everyone said they "bottled" it, but did they really? They were the only team to give Leicester a run for their money, none of the other teams showed up. And it's the same this season, they're the only team to sustain a challenge. They won't do it again, and maybe they'll collapse a bit when they realise first is mathematically impossible again, or maybe they'll learn from last season and keep going. Spurs play some of the best football in the league at the moment and have some excellent (and young) players, and one of the best managers in the league. They're in a strong position without spending hundreds of millions of £s hand over fist. Or rather, they sell enough other players to make it a negligible difference at any rate.
Danny Rose - £1m, Kyle Walker - £5m, Toby Alderweireld - £11.5m, who I rate as one of the best CB in the league, even if I am a bit biased. Vertonghen I think was never actually really released the fee, but Ajax wanted around the same fee (£12m) for him, and they make a great pairing.
That back four pairing is ridiculous when you consider the £50m for John Stones for example.
Dele Alli - £5m, Eric Dier - £4m, Cristian Eriksen - £10m, Victor Wanyama - £12m
Again, that's really not bad, is it.
Harry Kane - "Free"
That's just a bonus. Not had a prospect like him come through the youth ranks for awhile, in attack. Perhaps arguably since Nicky Barmby.
Of course, they've spent money on other players, some of who have come good, and some not so good. But the core of the team is pretty solid, for where they came from etc, and they actually play like a team, unlike the days of Gareth Bale who won entire games on his own. If they can hold on to everybody, and with the new stadium to come, and players (seemingly) enjoying being there, they've got a good immediate future...