Being 'conservative' here but youve got four names:
Dele
MGW
Gordon
Gallagher
If they were all rotating in 2 positions then thats a good thing for competition.
You make some very good points regarding top performers on loan about MGW and Gallagher -- although so far all we know is that were only keen on one.
As for formation:
Pickford
Patterson Mina Tarkowski Mykolenko
Gallagher ??? Dele
MGW DCL Gordon
If we add in a DM like Garner from United (Going with the young English theme) then that looks like 5 players pressing in front of a midfield anchor.
For the addition of Tarkowski (Free) + MGW (£25mil?) and Gallagher (Loan with opttion?) its a low cost improvement in 3 positions...
This makes sense and i noticed it too when Broja was mentioned. In fact, we'd almost 'need' to sign Broja as the whole pressing system falls apart if DCL is out.
The other idea may be to use MGW (or perhaps Dele?) as a false 9 which keeps players in the side who press from the front.
Makes no sense if Rondon plays and of course Gray probably isnt suited either.
If we see Lampard as going 433 or 4141 or something similar with a high press and a sitting player acting as an 'anchor' then the links and signings start to make sense.
In theory for this to work well we'd need MGW + CF + CM + DM with perhaps 2 loans used and u21s as backup.