Positives to this season
Leno, Kos (only probably has 1 year left, Lacazette, Auba, AMN(has had some dodgy moments)
Neutral
Bellerin (missed too much) -still not great at defending but important in giving our attack another dimension, same status for missed games for Holding and Mapravonos, Guendouzi has a decent first year, Xhaka was okish most of the time, Sokratis (some solidity), Torreira (more to come)
Emery has been overall ok given the hard task he inherited. His transfers last summer saved him.
Poor
Ozil, Mikhi, Licht, Iwobi (when is that end product coming, I would still keep for another year), Monreal (aging, has been a good servant), Kola (one more year), Jenkinson
Absolute rubbish (would trade for a bag of peanuts)
Mustafi ( I don't even like his attitude)
El Nene (poor all round, only contributes properly to our backwards triangles to Leno).
I think Emery will be busy this summer. He needs to be in order for him to bring in the players he wants long term.