Nottingham director of rugby Glenn Delaney says signing players with Premiership experience is vital if they want to challenge for promotion.
Delaney this week signed former Newcastle Falcons flanker Brent Wilson.
The 30-year-old New Zealander spent five seasons playing in the English top flight from 2006.
And Delaney told BBC Radio Nottingham: "It's by design and not default. You have to have people who can deal with pressure situations."
Nottingham currently lie in eighth spot in the table but only need to finish in the top eight to make the end-of-season play-offs.
"When the Championship play-offs are there, having people who who can play in one-score games is a real part of trying to be successful," Delaney added.
"The one thing you do need to have is lots and lots of depth and Brent gives us another body in a key area."