Rovers regular Derrick Williams says he has no problem with there being competition for places in the squad and says it will bring out the best in him.
The arrival of Amari'i Bell has seen Derrick head inside to left centre back, which has coincided with skipper Charlie Mulgrew's injury absence.
And Del admits he isn't the only one under pressure to perform, with a host of players set to return to action in the coming weeks.
“We’ve had a few too many draws but we’re still unbeaten in 18 games and confidence is high at the moment," he began when talking to reporters ahead of the trip to Plymouth Argyle this weekend.
“We’ve got three or four key players coming back. Competition is always good and everyone’s on their top game now, I think.
“We’ve got a very good squad and we’ll need every single player for this last push. It’s a difficult task but everybody is really looking forward to the games and going for that top spot.
“Darragh is coming back now and will be able to play games next week. There’s plenty of competition at centre back and at left back with Amari’i coming in. You have to perform otherwise you’ll be out of the team.
“I have done well at left back and Amari'i’s done well there in his last two games. It’s the same for Paul [Downing] with Darragh coming back. There are some direct battles in the squad and it’ll push everyone on to do better.
“Danny Graham wasn’t starting at the beginning of the season and Dom [Samuel] was, and playing very well, so things change in football very quickly."