Off it, Rangers' unmatched financial might seemed to give them a stranglehold on the Scottish game.
"We're in a good place at the moment and this is where we establish how far we have come and how far yet we still have to go".
Brown, who made his senior debut for Hibs in May 2003 before joining Celtic in the summer of 2007, has managed to make more than 450 appearances in all competitions for the Hoops, helping the club to win seven league titles, three Scottish Cups and four Scottish League Cups. It was an wonderful fall from grace for a club that has won more domestic honours than any other in world football.
The Northern Irishman is preparing for Sunday's Ladbrokes Premiership clash with the Light Blues at Ibrox knowing that a huge roar erupted from the Rangers dressing room last weekend when they heard the draw after beating Falkirk in the quarter-finals. The second time they were talking about the managerial situation.
"This is probably the first Old Firm game they'll have experienced where there is an expectation on them to get a result and they've got to handle that".More news: Dow Jones rebounds 399 points, Wall Street surges ahead of Powell's testimony
The sides meet at Ibrox on Sunday with Rangers in the better form, having claimed nine victories out of 10 since their goalless draw at Celtic Park last December.
Sunderland must be anxious about losing players in the summer window with a drop down to League One looking more likely than not right now.
The Old Firm game is available in most countries through the rights holders' online platform, if they have one.
Brown, whose present contract with Celtic runs until 2019, has played 44 games in the present campaign, providing two assists.
"This is the biggest test we now have and we have got a group of players who are really positive, really hungry and desperate to do well, which is a great thing for a manager".