At the centre of it sits Iliman Ndiaye, whose exit from Goodison Park now looks close after Everton grew tired of his refusal to sign a new contract - talks he held with Saudi club Al-Hilal earlier this summer only hardened the club's willingness to sell.
Tottenham and Everton have largely settled the framework of a deal, though Manchester City's interest in the Senegal international means it is far from certain he actually ends up in north London; City have separately explored Liverpool's Cody Gakpo too, another name on Spurs' list, though Liverpool insist any sale there depends on first bringing in a replacement of their own.
Everton's own incoming plans hinge on two names. Richarlison, who told Tottenham boss Roberto De Zerbi he wanted out before this weekend's admission, has terms in principle agreed to rejoin his old club - competition for Thierno Barry up front, and a useful hedge given the uncertainty already surrounding Beto's future.
Jack Grealish, meanwhile, is edging closer to a return to Merseyside on loan from Manchester City, having made clear he would rather go back to Everton, where he spent last season, than accept Aston Villa's interest in taking him instead; the precise structure of that loan remains to be finalised given Grealish enters the final year of his City contract.
Everton's rebuild extends to the back line too, with a £9m deal for Fulham right-back Kenny Tete now close - a transfer that nearly happened twelve months ago. That, in turn, has pushed Fulham back into the market for Rayo Vallecano's Andrei Rațiu, a pursuit already reported here and now gaining momentum as Fulham look to have a replacement lined up before Tete's exit is confirmed.
None of the four deals exists entirely in isolation, and with Tuesday's deadline fast approaching, how quickly any one of them is resolved could easily determine the shape of the others.