Millwall will need to strengthen their squad regardless of which division they will find themselves in next season.
Lions fans are currently dreaming of potential consecutive promotions with the Premier League on the horizon.
Their draw against Sheffield United moved them up into sixth place ahead of Derby County.
Based on the squads of the other teams in the play-offs, it seems unlikely that Millwall will get promoted, but people and teams have constantly underestimated them this season at their peril.
Their squad is built on solid foundations with only 40 goals conceded which only Wolves and Cardiff can beat.
However, they have only scored 55, which is the 11th best in the league; this is something that Harris will probably want to try and rectify by next season in order to carry on the impressive progression of this side.
Here are four players they should take a look at…