Grant McCann praised the younger players in the Rovers squad after the 2-0 win over Grimsby Town in the Checkatrade Trophy.
Several youth team products featured in the group stage victory, and the manager was pleased to see them all do well.
He said: “It was a good performance, I’m really pleased to have a good number of academy graduates on the pitch and I felt they all did well against first team players.
“A few of them took their chance which is exactly what I wanted to see, they’re definitely asking questions now.
“I thought a lot of players produced some really good performances, Alfie May could have had six or seven and once he gets that ruthless edge he can be whatever he wants to be.”
Rovers return to league action with a trip to face Rochdale on Saturday, and McCann believes different players have given themselves a chance of starting that game.
He added: “We’ll have Herbie Kane missing through suspension so both Ali Crawford and Jermaine Anderson have a chance to make an impact.
“I’m always open to different things but I’m mindful that the team that have got us 21 points so far have done really well.
“The performances of a few players has opened my eyes as to what they’re capable of in terms of coming into the side.”
Rovers return to the Keepmoat Stadium on Saturday October 20 to take on Gillingham in Sky Bet League One. Tickets are available from the Club Doncaster Box Office, on 01302 762576 or at tickets.clubdoncaster.co.uk.