Respectfully disagree. I think what Harry does best is what he's doing now. To keep him as a 'traditional' striker I think would lose so much of what he can do over and above what most strikers can do. Generally I think you have to be careful because what is an upgrade to a team in some respects is detrimental to others. I think one of the reasons Dele is less useful now is because one of the great things he did was arriving unmarked in the box late. There's just no room for that with Kane/Son playing as they are now.
I don't get to see Spurs as often as you guys ( not that often at all really) but to expand on my point on Harry - each year there are concerns about injuries and burn out, not helped by the number of games he plays. In addition, from what I see he pops up all over the park which will take it's toll over time.
I completely agree that he does a great job wherever he works on the pitch and perhaps my judgement is clouded by seeing how the team with Eriksen performed 3/4 years ago, but I feel it can only help to have a much more creative player in the middle of the park who can control possession and pass consistently to his team mates this taking some of the pressure off Harry.
Against this, in the last few games I have seen our control and passing has improved, probably linked to N'Dombele at last getting fitter and hopefully Do Celso can achieve the same. If so then we will have 2 players who can maybe replicate Eriksen's former standard.
I have also noted a return to the selective pressing style which can only help with plenty of ball turnover and an improvement in possession and goal scoring chances. Okay 2 of those games were Brentford and last night, neither Prem standard and the test will be against Prem sides of higher quality.
Finally, great to see the 3 youngsters getting their chance last night. A relatively soft 4th round draw should see them get another run out.

