WHAT'S that old saying? You wait ages for one bus to come along and then two turn up at the same time. Well, it seems Ange Postecoglou's Celtic bus - the one that can go on its travels and win matches - is finally up and running.

After almost eight months without a domestic away win for the Hoops just like that they've now registered two on the spin as goals from Jota and David Turnbull saw Postecoglou's men defeat Motherwell 2-0 at Fir Park to follow up their 2-1 success at Pittodrie before the international break.

The Australian head coach would be forgiven for thinking that saying 'international break' was like using swear words after being robbed of the services of Callum McGregor and Kyogo Furuhashi back in September.

This time around the Celtic players who were on international tours of duty returned with a clean bill of health and reported back all present and correct.

That didn't stop Postecoglou from throwing a couple of curveballs in his team selection before kick-off.

Defender Boli Bolingoli returned to the starting line-up for the first time since the 1-0 defeat away to Livingston last month while Mikey Johnston, who came on in that loss, was also listed among the substitutes.

Youngster Adam Montgomery dropped out of the squad altogether and surprisingly so did Republic of Ireland midfielder James McCarthy as Celtic faced a side who had lost just once in their last six matches.

Postecoglou also had the Celtic supporters raising their eyebrows as he opted to start with both David Turnbull and Tom Rogic in the engine room.

It took 17 scrappy minutes before the game was illuminated with a genuine touch of class. Rogic, so often the architect of good things for Celtic, did it again.

While Motherwell claimed a foul in the build-up, the ball was shunted to Rogic and his twinkle-toed feet did the rest. The Aussie produced a sumptuous through ball as he threaded the leather sphere through the eye of a needle into Jota's path.

READ MORE: Detailed Celtic player ratings as Tom Rogic adds touch of class to win over Motherwell

The Portuguese winger, who continues to inspire and grow in confidence with every passing game, did not even have to break stride as he latched onto the ball and confidently planted a wonderful first-time curled left-footed effort past Liam Kelly.

It was a lightning counter-attack by the visitors. The kind of breakneck speed football that Postecoglou has been banging on about from day one. The green-and-white machine in full effect, you could say.

Ten minutes later Jota slammed a bicycle kick into the turf and over the top following Liel Abada's cross but it was clear Celtic were beginning to enjoy the occasion - more than can be said for referee Willie Collum, who went off injured to be replaced by fourth official Chris Fordyce.

It was all over as a contest when David Turnbull hit an absolute screamer on 52 minutes with the outside of his right foot that sailed into the top corner of Kelly's net from 25 yards.

The visiting supporters lapped it all up even if Turnbull refused to celebrate against his former employers; a classy mark of respect from the ex-Motherwell academy graduate.

Thereafter the match was Celtic's - without hitting top speed they were always in cruise control. 

The keys are well and truly in the ignition and the 'Ange bus' is starting to rev now. The rest of the Premiership teams had better watch out if Celtic start to motor through the gears.

When Postecoglou's Celtic put the pedal to the metal and accelerate it can be an awesome sight. Just ask Dundee and St Mirren.