Newcastle have become one of the richest clubs in the world overnight after Saudi Arabia’s Public Investment Fund (PIF) shelled out £305m to end Mike Ashley’s 14-year ownership of the Tyneside club.
Staveley’s PCP Capital Partners control a 10 percent stake in the club.
The Magpies are expected to replace manager Steve Bruce, with Staveley underlining the club’s long-term plans.
"We are in the market to compete for world-class players," she said in an interview with The Sun.
"We have great ambitions — I hope it’s going to be a game changer for Newcastle United.
"But if you don’t put the infrastructure around that world-class player and you don’t have a team that can play with him, you’ll get nowhere."
She added: "The training ground is really awful and needs a huge amount of investment.
"Luckily, that is one area we are not restricted by Financial Fair Play.
"There is no point in having fantastic players if there is nowhere for them to train.
"To get to the top of the Premier League you need a strong foundation, not just great players. They need to be robust and we need to build them.
"We also want to invest in St James’ Park — it needs a little bit more love."
Newcastle are yet to win in their seven Premier League games this season.
