Glasgow Rangers resumed their dominance of the Scottish game during Dick Advocaat's first two seasons in charge.
The Ibrox side won five out of six trophies domestically while defeating strong European sides such as Parma and PSV Eindhoven in the Champions League.
His third season in charge, however, proved to be a disaster and the Dutchman made one of his biggest blunders during his spell at the Light Blues, signing Tore Andre Flo.
Advocaat made huge Rangers blunder on Flo
November 2000, Rangers are struggling in the league as Celtic appear to be revigorated under new manager Martin O’Neil. Advocaat, therefore, splashes out £12m to bring Flo to Scotland from Chelsea and the transfer is still the club's biggest ever outlay for a player.
Initial impressions were good, with the Norwegian scoring against Celtic on his debut in a 5-1 rout and he went on to score another 12 goals that season, despite Rangers ending a season trophyless for the first time since 1998.
Season 2001/2002 saw Flo hit new heights in Scotland, scoring a remarkable 25 goals in all competitions as the Ibrox side won a cup double under new manager Alex McLeish.
On the back of an excellent season, much was made of Flo spearheading the Rangers attack ahead of the new campaign, but McLeish surprisingly sold him to Sunderland for a fee of £6.75m, with the club suffering a massive loss just two and half years since buying the striker.
Sunderland manager Peter Reid expressed his delight in signing Flo, going on to say he had “excellent finishing skills” and despite scoring on his debut against Manchester United, it didn’t quite work out for the player back in the Premier League.
Overall, Flo played just 72 times for the Light Blues and scored 38 goals, which works out at £315k per strike.
For a club record fee of £12m, the Ibrox faithful certainly expected a lot more from Flo during his spell in Glasgow. Advocaat made some impressive signings as Gers boss but splashing out on the Norwegian at a time of struggle was arguably his biggest mistake.