Every club in Scotland must heed warning, says Danny Lennon

The Clydesdale Bank Premier League champions appointed administrators Duff and Phelps on Tuesday after a court battle with Her Majesty's Revenue & Customs.

Lennon insists that clubs now must learn to live within their means, rather than taking on debt for short-term gain.

"It's very sad for a club the size of Rangers to find themselves in the position that they are in," said Lennon.

"I think it's now time for all the Scottish clubs to ensure they have their house in order. Going into debt perhaps will give teams short or medium-term advantage, but the current situation shows just how incredibly harmful it can be."

Lennon's side take on Dundee United at Tannadice tomorrow, knowing a win would move them above their opponents and closer to the top six.

St Mirren have no fresh injury worries ahead of the match, but will be without top scorer Steven Thompson, who was ordered off in Saints' 2-1 William Hill Scottish Cup victory at Ross County.

"Steven is a vital player for us and he was looking forward to going up against his old club, but it presents an opportunity for another player to step up," Lennon added.

"It's an exciting time of the season and we are delighted to be going into the last seven games of the season two points behind a place in the top six. We have a very good record against Dundee United in my time in charge here and we will go there hoping to keep that record intact.

"We are playing against a side who, outside Celtic, are the in-form team. United for me are a team that produces very good youngsters, they continually make the later stages of the cup and that's the kind of thing we are trying to achieve."

Tuesday evening's victory over County earned St Mirren a Scottish Cup quarter-final meeting with Hearts at Tynecastle.

Lennon is hoping their success over the Irn Bru First Division leaders can inspire them to their first league win of 2012.

"Any type of win is very important and that's what we strive for on a weekly basis," said Lennon.

"The lads did terrifically well against a very strong Ross County side, especially after playing an hour with 10 men. We now need to try and build on that win against Dundee United.

"It's nice to be able to look ahead to a cup quarter-final. Paulo Sergio is a manager that interests me a great deal, given his cultural background in the game.

"He is a lovely man and has done very well at Hearts, given the difficult circumstances they have had recently."