Do you think sacking the manager is the issue? Take a look at the image and the coaches they have sacked, I do think it's time for a change of management, the chairman Daniel levey has to go completely. His been around for years and they have achieved nothing for Tottenham Hotspur. Something has to be done to boot the chairman out for another, they've done changes but they're not enough for the growth they desire.
I don't really think it's necessary for Tottenham to sack their manager. I think the club needs total restructuring. And in as much as people are calling for the chairman of the club to step down, I fear that without proper vision and policy the club will not achieve any meaningful result no matter how many managers they sack.