New Cambridge United midfielder Conor Newton says the competition for places in the League Two side's squad will only be a good thing.
The 23-year-old, who only made 14 appearances for Rotherham last season, is one of 10 signings this summer.
"Competition is only going to help the squad get better.
"If you have 11 players that you know will start week in, week out there's not a big incentive to work hard," he told BBC Radio Cambridgeshire.
"When you've got a good squad, everyone's going to be working hard."
Newton previously played under Cambridge boss Richard Money during the latter's time as Newcastle's academy director.
And he says the chance to work with the former Walsall and Luton manager again influenced his decision to move to the Abbey Stadium.
"He pushed me on a lot when I was 18-years-old at Newcastle," said Newton. "I'm excited to come and work for him again; it was a big factor in my decision.
"His record speaks for itself, he's a really good man to work for and he gets the best out of his players.
"I was a bit taken aback when he got in touch with me, but the things he's got to say about the club, the setup and going forward, it's quite inspiring."