Back to the day job.    A cup run is a welcome break from the weekly chore of trying to get back into the Premiership, but it's back to the bread and butter stuff this weekend as we take to the road again with a visit to Falkirk, the land of the Kelpies, the Big Wheel and the Antonine wall, a sort of poor mans Hadrian's wall. It's the fifth meeting between the sides this season already. Falkirk won the first up in the Highlands in a league Cup encounter when we were going through