Retain those in bold, and release / sell the others.
I was going to suggest upgrading on the likes of Shelvey and Ritchie, but we know that's never going to happen, therefore we may as well retain those as well and spend elsewhere.
Agree on the 2020 ones, depending on how the 2 loanee fullbacks go Manquillo may need to be kept on.
Not bothered at this stage on the 2021 list. We either get taken over and can release them all or we don't and get to next Feb with Bruce being sacked and a new manager in charge who they may or may not want to sign up to play for. The 2 I'd really push to keep (Schar and Woodman) won't stay unless there are changes
I'd lump Manquillo into the same bracket as Shelvey and Ritchie tbh, if we need to keep him then so be it, but we should really be looking to nail down two wing backs as a priority alongside the centre and a striker.
Yedlin at full / wing back in the Premier League scares the life out of me, but Manquillo just isn't a wing back imo, average full back though, definitely seen worse. It's criminal that we're persisting with wing backs without having had anyone decent on the right for over half a season.