I still think that the only thing wrong with these players is lack of confidence and direction:
Rushworth: has been great, can easily play this level (provided today's mistake wasn't secretly a gambling thing)
Key: has been one of the best players this season, looks comfortable at this level
Cabango: Welsh international, has been asked to play in a high line too often which reveals his lack of pace. Goes back to what
@ivoralljack was saying about playing a system that suits the players strengths, rather than exposing their weaknesses
Humphries: Jury's still out. I think he's a little raw, but you don't make Chelsea's team without being half-decent
Darling: Has some glaring weaknesses of which defending is one, which makes his career as a defender baffling. His long shot and heading ability and his willingness to get forward and run with the ball would make him a better midfield player or wing-back. Flawed for sure, but used properly he can operate at Championship level. Even as a bench option to score from set-pieces late in games, he has value at this level.
Tymon: 106 games with Stoke over six years proves he is Championship level. Unspectacular, but a solid citizen
Grimes: Probably Swansea's most valuable player in terms of transfer market valuation and is the division's 32nd best passer, which doesn't sound great until you realise that's 32nd out of around 365 players, which puts him the top 10%. Definitely comfortable at Championship level
Fulton: Has played Premier League. One of Swansea's best players and the man I would build the midfield around
Lowe: Couldn't quite cut it in the Prem, but the fact someone thought he could surely proves he's good enough for this division. A useful nuisance even when he's got grease on his shooting boots
Yates: Scored 15 goals at this level with a bad team. Good enough.
Paterson: Often Swansea's best player. Has never
not played in the Championship, so good enough.
Cooper and
Cullen: Have held their own. Need to be played a lot more to develop. Both have had bad games (this season, everyone has) but have never looked consistently out of their depth. Cooper looked very much at home as a Championship regular in the last days of Martin
Patino: As with Humphries, has Prem academy pedigree. Leads the team in assists despite not playing all the time. Good enough.
Wood: Was starting to look dominant among the defenders before his injury. I do think central defence is this teams weakest area by far however
Bolasie: Obviously a class apart, could probably play this division with covid.
Allen: Will probably never play again but is fading Prem class even now, if only he could stay healthy
Pedersen: Established Championship player, good enough
Ginnelly: Looked amazing, pity about the injury. Would be starting every game and improving the team's scoring threat by a noticeable degree if he weren't injured
Big Myk,
Abdulai and
Walsh we haven't see enough of.
Naughton was always a Prem level player too, though surely more of a mentor now that a serious regular option.
Fisher, hate to rag on the guy, is the only player for me that isn't up to this level, though he might be if he tried playing somewhere other than in goal.
This squad isn't particularly sexy. There's not much name-brand star-power or wunderkid potential here. There's not a set identity where the team is noticeably excellent in one common area ("highly technical" or "big and fast" etc), and the horrible extreme contrasts of recent managerial appointments have shorn the teams sense of unity and direction in two.
Martin's approach was too slow and impotent, used a high line which did not suit the slow defenders, and played a system that needed better skilled players to execute. He was either unwilling or unable to change his system to suit, so the players under-perform as they are not being used properly, and how can that be good for confidence?
Duff's approach was a compromise where neither party wins - he would have played even more direct given free reign, but because of the players (and the fans), he had to reign it in a bit, giving us a non-system which wasn't one thing or another, leaving the players clueless as how to play as a unit, leading to inevitable bad results, which once again destroys confidence.
This team has become dysfunctional through misuse. Get a level-headed manager without an ego and with a clear vision that can work given the available players, and this lot will be fine.
If it were my call, I would hire Jimmy Thelin, sell Grimes, and use the money to buy two fast centre backs.