Goalkeeper Mark Schwarzer believes Fulham must continue to strive for bigger and better things after enjoying a period of unparalleled success.[LNB] The Cottagers have twice finished in the Premier League top 10 over the past three seasons and also made it to the Europa League final in 2010.[LNB]Schwarzer has proven a key figure during Fulham's recent success and has urged his team-mates to continue where they left off next season.[LNB]"We've just got to keep backing up what we've been doing over the last few years," he told the club's official website. "The last three seasons have been - for Fulham Football Club and a lot of us personally - fantastic.[LNB]"It's possibly been the best three years in a lot of our careers. We need to continue that run.[LNB]"We believe that we belong in the top half of the Premier League and we like to think that we can mix it in Europe every couple of seasons.[LNB]"The expectation levels are always higher. When I first came here, the club had just avoided relegation with 15 minutes to spare so anything above that was a bonus.[LNB]"To then finish seventh, then have such a great run in Europe and finish eighth last year means the expectations are there.[LNB]"We, as players, acknowledge that and we know that we need to live up to them.[LNB]"So far it's been a great challenge. If you look at the history of the club and how much has been accomplished, particularly in the last three years - it's been outstanding."[LNB]Schwarzer has been with the west London club for three seasons now and was keen to praise Fulham chairman Mohamed Al Fayed for helping the club to their current position.[LNB]"The chairman's been 100 percent supportive and the club wouldn't exist in the position it is now without the support of the chairman," he added.[LNB]"He's always been there and he's always been rock-solid for the club. He's always looked to progress.[LNB]"In the years that I've been here, I've seen a lot of progression."[LNB]Meanwhile, Fulham have confirmed that its development squad will compete in the Premier Reserve League South next season.[LNB]Billy McKinlay's team will face the likes of Manchester United, Chelsea and Arsenal over the course of the 2011/12 season, with home matches taking place at the club's Motspur Park training base.