I think if Bale continues anywhere close to the form he is, we have to keep him for next season as well (question: are we fully in control of that situation?)
It's tough to know who to shift as they all have their pluses and some (Lucas, Lamela) are certainly showing it at the moment.
Lucas and Lamela have a natural tendancy to work as part of their game but can bring flair too.
Bergwijn works hard but I feel it is to the detriment to his flair and teamplay that I think he is very capable of. He's young as well, so has potentially longer service ahead of him.
If Dele comes good, and there is a chance he will if he plays in his very best (niche) position ghosting around the outer areas of the box, then he'll add what he did in his prime (15+goals), he's still a good age as well. If he doesn't then he'd be an option to sell as I think we'd still get good money for him. (And we are going to need incoming funds)
The main 3 pick themselves when fit, so we'd are only left with one place (or zero places if we went 433)...so a trim is likely and sensible. Value,age, and contract length may well be deciding factors.
I sincerely hope we never go 4-3-3 again, at least with anything similar to the current personnel. We've become far more dangerous since we went 4-2-3-1. Back on topic:
Backtracking on my post to which you replied, perhaps we actually are ok for bodies. For the 3 positions behind the CF in a 4-2-3-1, we'd want 6 players:
- Bale and Son are first choice
- Bergwijn stays because of age and potential
- Dele, if he returns to form, stays as he's been excellent previously in the no 10 role and we're now playing 4-2-3-1 again which suits him far better than 4-3-3
- which leaves Lamela and Moura for the 5th and 6th spots .
If we consider TN and GLC as CMs then we probably are ok with the above in terms of numbers. Question is then about age, HG vs Non HG and blend of type of player