The reigning champions beat Heart of Midlothian 2-0 at Tynecastle and McCoist highlighted the importance of consistently getting good results on foreign territory.
"You've got to do that to win titles. I don't think there is any doubt about that," he said.
"You have to show a great level of consistency away from home. When you look at our league, there are some tough places to go.
"To win a league campaign anywhere, your away form has to be really solid. At this early stage in the season ours is more than okay.
"They just take a pride in their defending. I wouldn't want to tempt fate but they are doing extremely well at this moment in time.
"We've got a good blend of experience and determination - all the qualities you need to defend.
"To win anything you've got to have a solid defence and we feel we've got that.
"Just as importantly we've got players who can nick us a goal at the other end so at this moment in time it's going all right."