even there own boss Mauricio Pochettino says it how it is
Mauricio Pochettino: Tottenham will not compete with richer clubs over huge wages
http://www.bbc.co.uk/sport/football/39956996
spurs will sell sell sell before they gamble on a player and with 6 other big clubs who will spurs will always come up short
Spurs haven't come close to competing financially with the other top six clubs for the past eight years. Yet they've still remained in the mix, finishing above all of them at least once and above some of them several times. As a matter of interest, why do you expect that suddenly to change?
And I see no evidence that Spurs will, as you put it, "sell, sell, sell".