Celtic and Rangers have both had mixed starts to the season in Scotland and been left playing catch up.
After at one stage sitting in fifth and sixth place, the two sides sit in second and third, closing in on leaders Hearts.
The problem for Rangers is that Celtic appear to be clicking into gear, and they keep stalling.
Steven Gerrard's arrival at Rangers quick-started a faltering team and salvaged last season's wreck of a side into a respectable team moving in the right direction.
Celtic appear to now be motoring at full speed and it is a pace which Rangers just can't keep up with.
Rangers lost their cup semi-final 1-0 while Celtic cruised through theirs 1-0.
It was only September 23 that Rangers climbed above Celtic in the Premiership table. Now they are four points behind.
In Europe too, Celtic are getting their act together and have six points from four games, while Rangers' promising start is at risk of slipping away after they fell to defeat last night to remain on five points.
While Brendan Rodgers' is settling on the formula for his best XI, Steven Gerrard is still struggling to find his best defensive combination.
On the horizon is the transfer window, where Celtic's superior financial resources give them the power to pull further away if they spend the money wisely this time.
Rangers will have done well simply to be in touch with their rivals by that point.