Reading defeated Doncaster 2-0 for their first home victory this season and moved into 14th place, leaving Doncaster at the foot of the table.
"I am delighted that Adam Le Fondre scored. It was a great cross from Mills and a great header," said Royals boss Brian McDermott.
"The last 20 minutes wasn't great to watch but we got the result.
"I started Adam on the bench because I thought starting with Noel Hunt and Simon Church was right for this game. I just thought that he could probably do something coming off the bench. Being there gave him more time to see what we are about as a team.
"Some of his touches were excellent and he can create as well as score. That was a difficult header for his goal.
"He worked hard and the fans have taken to him right away. I thought our fans were magnificent today and really got behind the team.
"We have had a difficult start to the season. I have not really had a spell like this as manger but coming through this makes you stronger."
Doncaster boss Sean O'Driscoll felt they were unfortunate that Reading's opener was not given as a foul on the keeper.
"He got one hand to the ball and Le Fondre jumped into him. In English football if you jump into the keeper you give away a foul.
"We made too many mistakes and in this position you can't afford to make many mistakes.
"It's too easy to say that we are not getting the rub of the green.
"We have to be more clinical in situations and learn from our errors or we are just going to go from game to game making the same mistakes.
"The manner of the goal made me think: 'here we go again'.
"I brought Neil Sullivan back into the side for his experience. He has been training well and he is an experienced player who is in our ranks for a situation like this.
"It's a situation that demands a little bit of nuance.
"Reading's second goal was a free header. He's hit the line and scorched a big high cross to an unmarked player at the far post. That's the type of mistake we must cut out."