The challenge with replacing Mignolet and Moreno is that whoever comes in will know from the outset that they're most likely not going to be first option in that position, given that they've got two of the best in the world at the positions in Allison and Robertson.I share the excitement about some of the prospects we have. The two young keepers, Camacho, Jones, Philips, Brewster, Solanke, Wilson all have talent, others too.
However, I don't see them en masse filling up the 20 senior outfield player positions I believe you need to compete on all fronts, certainly not in the short term.
One or two will come through very soon into that 20, the if you're good enough you're old enough thing (a la Fowler, Owen, Gerrard).
But most of them need to develop on loan elsewhere to ensure they're properly ready.
I actually think Clyne showed his old self yesterday, such that he could be a viable rotation option with TAA. In fact, despite being a little shorter than ideal, given his defensive qualities he could actually also cover centre back much better than putting a midfielder or kid there.
The issue is with players who aren't good enough to rotate and thus don't play at all. Clyne looked like he'd fallen way behind last season and against Chelsea in the League Cup this. If he can perform like yesterday, I think he's a viable option for tough European away games against tricky wingers. TAA got torn apart in Rome last season, the Clyne of yesterday would handle that better.
Based on recent performances, I think we're looking at upgrading Moreno to someone like Sessignon (who can cover the wing too), swapping Mignolet for a similar level back up, and further strengthening the attack and attacking midfield depth.
Basically, on top of letting Moreno and Mignolet go and replacing them, we're talking about letting Sturridge, Origi, Solanke (temporarily) and Lallana go, bringing Oxlade back into the mix, promoting a youngster (Wilson most likely) and signing one or two quality attacking midfielders/forwards.
That's your four signings next summer - keeper, Sessignon, Fekir and another forward.
Ideally one or two of them would be signed in January.
As average as Mignolet can be, he's still good enough to be a starter for a mid-table PL club, and signing someone of that level to sit on the bench 24/7 is easier said than done. As such I think it's more realistic to expect someone a slight tier below Mignolet (perhaps someone like Alex McCarthy, Heaton, or Pope)... Basically just someone who can keep the seat warm until Grabara and/or Kelleher are ready, and ideally someone who fits the style of the team.
Regarding LB, I think the most reasonable way forward is to recruit someone in the age bracket below Robertson (24), who has the potential to grow into the role and challenge for that spot. Sessegnon is the obvious name to mention in that regard, but I'd think the scouts would have a good eye for other options too given their interest in Chilwell before he signed an extension with Leicester.