Portsmouth boss Paul Cook says the first game of the season will be a "step into the unknown for everyone".
The Hampshire club's League Two opener against Dagenham & Redbridge will be his first competitive game in charge, having joined from Chesterfield in May.
"I'm happy with what we've got at the minute, but it's a bit of a step into the unknown," Cook told BBC Solent.
"There's a lot of euphoria about, without real substance. None of us know what Saturday's going to bring."
Chairman Iain McInnes has said the club are looking to increase the capacity of Fratton Park so they can compete in the Premier League in the future.
"We're not fully happy with where we're at, we'd always like to be stronger," added Cook.
"Good players always turn up. They don't always play well but they always turn up, and we've got to make sure that when we're not great on the eye we find a way."