The club needs a marquee signing to justify the high season ticket prices in the first season in the new stadium and someone has to make way. I think that player is probably Lamela.
Stepping back here a bit, would you care to explain WHY IN THE WORLD would the club make marquee signing in AM position?!?!?! That sounds utterly stupid, as this is our best line of the team together with GK position. We have luxury of super creative dynamo of Eriksen, very cleaver and technically good Alli who provides both - assists and goals also now we have relentlessly working Son who is on track to produce 2nd 20+ goal season from AM position. And on top of such trio we have Brazil full international who was one of the most creative players in last season CL in Moura, plus Lamela back from injury AND if needed we can play Sissoko there. Why would we spend loads of cash on this postion?
At the same time we rely significantly on Moose health who is on wrong side of 30. Both of our RB options are still bit of question mark, Rose seems to be on his way out and if Kane cant play we have to shift Son from AM to ST. Toby has not signed new contract so it might happen that next year our first back-up CB pick is very uproven 19 year-old Argentine.
ALL of those positions would be more important in the same order than to add one other good AM to the team. Football is more than 4/5 attacking players you know...
P.S and if you were suggesting that we need additional cash for buying a marquee signings then maybe I could remind you that we have players in our books who have had quite modest effect of our current season. Let's start off with Janssen who was sent to Turkey. We brought him for 17 mil, he has not done too well, but it is Levy magic, he could still milk like 10 out of him. Then we have N'Koudou who we sent to Burnley. His time with us is surely over and we paid 11 mil for him. Levy could get 6 from here. Then we have Onomah, who I personally very much doubt can force himself into picture with all the players we have right now. He is young, English and some experience in domestic football, so 15 mil would not be too little for him I'd say. Then we have Rozyyybooyy who has been very-very poor this season and was moody in summer, I expect him to leave and I totally see different EPL clubs bidding A LOT (either clubs as ManU who don't count the money or some clubs desperate to "show intent" from midtable) - let's say 35 mil for him. Llorente is clearly washed up and not even used as 2nd option to Kane. He is old, sure, but for 7 mil we'd find suitor from Championship if needed. So that would be 73 million for selling players that have got game time of total 2170 minutes across whole season combined. Plus there is for example Sissoko, who I did not want to include here, as he seems to have found smth in him to play in CM, there is some degree of doubt about Winks as well (though I do not like to sell homegrown players like him, Onomah or KWP, we have to acknowledge that they all have value and might not break into the starting team. selling such players has been our model for quite some time now) - I could see one out of the two sold if high profile CM would be added to the squad. IF (and big if) one of those would be added then we could talk about earning 90 mil for selling players whose combined playing time would be either 3670 or 4328 minutes. So for fundraising there ALSO are other options if needed.