Squad needs pruning

We currently have 8 home grown players and we are not allowed any more than 17 non-home grown players named in a Premier League squad and thus eligible to play in the Premier League.
Our home grown players are Kyle Walker, Danny Rose, Kieran Trippier, Ben Davies, Ryan Mason, Nabil Bentaleb, Tom Carroll and Harry Kane.  Younger players like Dele Alli do not have to be named.

We have 15 non-home grown players and 3 of those are potentially for sale so we do have some leeway.

Our current squad numbers is:
Goalkeepers
Hugo Lloris (age 29)
Michel Vorm (age 32)
Defenders
Kyle Walker (age 26) Home grown
Danny Rose (age 26) Home grown
Toby Alderweireld (age 27)
Jan Vertonghen (age 29)
Kieran Trippier (age 25) Home grown
Kevin Wimmer (age 23)
Ben Davies (age 23) Home grown
DeAndre Yedlin (age 23)
Of that group DeAndre Yedlin is surplus to requirements and available for sale.
Midfield Players
Nabil Bentaleb (age 21) Home grown
Ryan Mason (age 25) Home grown
Érik Lamela (age 24)
Eric Dier (age 22)
Mousa Dembélé (age 29)
Nacer Chadli (age 26)
Christian Eriksen (age 24)
Tom Carroll (age 24) Home grown
Victor Wanyama (age 25)
Son Heung-min (age 24)

Midfield is an area we are in the process of overhauling. Nabil Bentaleb has been told to find another club, Ryan Mason, while having a tremendous attitude towards the club, is a bit-part player who is available for sale, should a decent offer come in. I understand he doesn't want to move though and is happy to remain knowing he will get limited chances. That makes moving him on difficult.

Tom Carroll is in the same situation as Mason and has the same view, he doesn't want to leave, then there is Nacer Chadli, another who would rather stay, but is available for the right price.

There are three home grown players there and while all are for sale this window, it is unlikely all would leave. The fact that they want to remain makes it difficult, but the players know the score and if they are happy to accept their squad role then Pochettino doesn't have a problem working with them.

We are looking at bringing in a central attacking midfield player and or a wide attacking midfield player or a player who can play both roles. That would make us heavy in midfield and we may need to lower our asking price if we want to move players on.
Forwards
Harry Kane (age 22) Home grown
Clinton N'Jie (age 22)
Vincent Janssen (age 22)
Clinton Njie has been offered to Marseille, well almost convinced to go there by Pochettino and Mitchell. He is another who, like Mason and Carroll will see limited game time and is for sale. We have clearly tried to sell him so how wil he react to that if he remains here?
Under-21 Players
Luke McGee (age 20)
Cameron Carter-Vickers (age 18)
Josh Onomah (age 19)
Dele Alli (age 20)
Harry Winks (age 20)
While we can name these players in our Premier League squad of 25, we don't have to, they can play as often as selected.