Doncaster coach Paul Cooke wants to see more quality from his players, to complement their strong character.
The Dons ultimately lost their season opener at London Broncos 26-22, but had been down 20-0 at half-time.
Cooke now wants his players to show skill as well as fight and heart.
“I’m extremely proud of the character of the group, but I’d like a bit better quality at the start of the game,” he told his club’s official website.
“It’s three from five where we have been behind after 15/20 minutes and we have not started the game well.
“I’m proud of the boys and I know what I am going to get from them, I know I am going to get that kind of commitment every single week.
“What we have to do is come up with some answers about the early part of the game, but to a man they are a credit.
“I say it every single week, I am proud of everyone single one of them and the players that didn’t play today that were left out, that are a part of our squad and make us a really tight unit.