He came on as a sub plenty of times and did nothing, if he started he did nothing. . 27 appearances is plenty of times to make yourself present in at least a handful of them and he very rarely did.
Chelsea kept him because he was great at youth level so why wouldn't they, England picked him for youth teams because he was a great youth player obviously, Liverpool picked him up because of his track record at that level and hoped he could make the breakthrough there and failed to make himself the clear backup striker in his first season, there's a reason a player with 27 appearances for Liverpool this season is being linked to us on loan and that's because they don't think he's good enough for them at the moment and possibly ever
If people are happy to sign a striker on loan who's averaging a goal every 7 games to potentially be our #1 striker if Morelos is sold then i worry about the standard people are willing to accept for players who are going to have to be crucial in breaking away from the rest and challenging for the title. It's one thing if he was going to come here and be a back up striker that would very occasionally play because we need much better squad players than we currently have in that role and Solanke is certainly a better player than Kenny Miller at his age or Eduardo Herrera but Liverpool aren't going to send him here on loan if thats the case