From what little I have seen of Agyei this season, it’s difficult to assess.
Ten - twenty minute cameo appearances off the bench and abomination cup games has pretty much been it as far as I can see.
I saw him at Hayes and Yeading and thought that he looked tall, quick and athletic, but we have had our share of players who look right but can’t stir a pot of P**s (Jon Obika, George Waring Van kettle).
FWIW, he hasn’t really had a proper run in the team and if he is to continue on for the rest of this season as a bit part player, perhaps he will be better served by a loan where he can get the meaningful experience that only regular competitive football can provide.