A lot of these so called purples are not purples in my book. Ben Afa,although gifted, injury prone and spends a lot of time recouperating in France.
Cisse, misses a lot of chances but service to him is awful.
Cabaye, disapperas in too many games
Tiote, not the player he was and will be suspended for periods.
Now some of this may be down to our poor coaching and tactics, but as there appears to be no change there we may be better off selling them at a profit now.
The question will be the quality of their replacements.