The 'bottling' thing is nonsense. The fact that Harry Kane always steps up and pretty much always scores pelanties tells you immediately that he is anything but a 'bottle job'.
In fact look at the last World Cup.... Kane, Trippier and Dier all stepping up, taking and scoring pelanties.
The whole bottle jobs thing about Spurs is also nonsense. We lose Cup finals against teams with bigger, deeper, more expensive squads at the end of the season when their bigger, deeper, more expensive squad is less fatigued than ours. That is it really.
The exceptions to that were Portsmouth under Harry (when we managed to miss a bunch of great chances) and Blackburn under Hoddle when one or two of our players conned the manager into picking them when they looked as though they were clearly not fit.
Regarding Harry, I do think that we should look to sell him one day. I'm just not sure when that day is. I don't think it is quite yet but equally I'm not sure it is more than a couple of years away either. What we do not want to do is keep him until his body starts to give up more and more and leave us little money to bring in our next option for the long term.
I can't help but think that the decision will be taken out of our hands anyway. I doubt Harry wants to go a whole career without winning the big trophies and I doubt he sees us moving forward to do that over the next few years while he is at his peak. I shudder at the thought of how many goals he would score for a team like Emirates Marketing Project and it wouldn't surprise me to see him start to angle for a move to them. Once he does start to angle for a move somewhere we have to simply be clever and get the most money we can for the player and then make sure we're entrusting that money to the right person for our rebuild (I think that person is more a Mitchell or Campos type than Mourinho and Mendes).