coming into a team just won the treble from a farmer league club and try to replace the experienced Mahrez who was fitting Pep requirements out wide perfectly...
also to have Grealish a really nothing season with bad form and stop/start due to injuries which probably made Doku's game time overall bit more than it was supposed to be in his first season.
overall its a good season despite goals and assists really dried up for him recently.
20 apps for him is not bad in 28 rounds, and 14 of these 20 were starts actually.
in 20 PL apps he has 2 goals, 5 assists, albeit full picture is worse if you take into account that 4 of his assists came from that big Bournemouth beating at home 6-1, Doku popped up with 1 goal and 4 assists in that game.
take that away and its 1 goal, 1 assist in the other 19 games (13 starts, 6 subs). thats poor from a winger end product point of view imo. but in that Bournemouth game he was lethal, we need to see that Doku bit more often.
his other PL goal was against WHU in September and his other PL assist was against Brighton in October. nothing since then...
(one goal vs Huddersfield, but in Fa cup in 5-0 win and also great cameo vs Leipzig away from home back in October)