Mark Sampson’s side secured a record third-place finish in Canada after their first-ever victory over Germany last weekend, with Women’s World Cup fever gripping fans across the country.
And the Lionesses will all resume their club duties this weekend as the WSL resumes following a mid-season break to accommodate the World Cup.
"The WSL is still in its early stages of development, but it’s doing very well," said Glenn, after joining the England squad for their visit to Kensington Palace for breakfast with FA President HRH The Duke of Cambridge on Thursday morning.
"Naturally, it’s going to get more crowds due to the publicity generated from the great team performance in the World Cup.
"But we invest a lot behind it and we’ll continue to invest a lot behind it so there’s a lot of opportunity to come."
Watch FATV's wrap of the Lionesses' trips to Kensington Palace and No10
Glenn started his new role with The FA in May and was in Canada for England’s first game of the World Cup, a narrow defeat by France.
And he says the spirit and attitude of the group after that game convinced him that success was always going to follow.
"I saw them after the game with France in the first game and they were still very positive, asking what they could learn and do differently," he revealed.
"They’ve been terrific and if you talk to Mark Sampson or if you talk to any of the team set-up, they’re good players but what really stands them out is the team spirit.
"I think the team spirit and the way they play for each other and they play for the country has really impressed people."