I think we're crying out for reinforcements all across the squad. The amount of outgoings to trim down the squad and get rid of the deadwood is a warranted move. But if we're serious about promotion, or even improving on last season's position, then I believe we still need to sign several players and continue with shipping out some of the poorer players. I think with only one senior goalkeeper at the club - and not a very good one, in my opinion - we definitely need a new keeper. Benjamin Siegrist from Dundee United looks like a decent signing, if we can get that move over the line. With only Kenlock as the senior left back - and again, not a very good one in my opinion (although he is improving) - we evidently need somebody there. We need at least one centre-back in the squad, ideally an experienced guy with leadership qualities. We need a bit of steel and leadership in midfield, particularly if Downes ends up going.
We've currently got 18 senior players. So far, the best, fully-fit starting eleven that we can put out - in Cook's preferred 4-3-3/4-2-3-1 formation - is probably something like the below:
GK: Holy
RB: Kane Vincent Young
LB: Kenlock
CB: Wolfenden
CB: Nsiala
CM: Downes
CM: Bishop
AM: Evans
RW: Burns
LW: Lankester
ST: Norwood
And of course, that's your best case scenario ignoring our recent record with injuries. If you're looking for a second-string eleven beyond the above, then we've currently got gaps everywhere. It's going to have to be an academy lad for your sub goalkeeper. Donacien and Ndaba (at a push) are the only other senior defenders we have. Nolan in midfield, then it's young lads like Dobra and El Mizouni. We've got a bit of back-up up front, through Jackson (who's probably off) and Drinan (who isn't League One standard).
I'd want to see one new starting goalkeeper, one new starting left-back, one new starting centre-back, one new starting central midfielder, and one new starting left-winger through the door. So that's at least five in and then potentially replacements if Holy, Donacien, Downes, Bishop, Jackson, and Drinan leave. In my eyes, there is still a lot of transfer work to do.
What I said with more words (which I can't often claim)