Rohl was able to enjoy his side scoring four goals for the second game in a row at Ibrox, with some influential performances in attack.
As the German said after the match, if Rangers win six games they win the league.
The question is whether the performances suggest they are capable of doing that given the opposition only gets tougher. Rohl is “convinced” they can.
The win against United built on improved attacking performances, something that has been thrown at this Rangers side. Are they creative enough?
They are, though, the top-scorers in the league and looking much more of a threat.
Thelo Aasgaard has been a much-maligned figure in his maiden season at Ibrox but was involved in three of the four goals, including scoring the third.
Djeidi Gassama, whose form has dipped after eye-catching early displays, was impactful off the bench in driving Rangers forward, and set up Aasgaard.
Striker Ryan Naderi grabbed his first Premiership goal too, before being withdrawn with an injury at half-time for Youssef Chermiti.
Rangers’ number nine ended up with four shots and no goals in a busy display but is still looking for consistency, while Andreas Skov Olsen underwhelmed again before being withdrawn at the break.
Nonetheless, there is plenty to build on.
“We have to be on the front foot and if we win six games then we will have something at the end of the season,” Rohl added.
“I am really convinced that my players have the potential to do this. But there is still a long way to go and it’s no secret that next week away to Falkirk is a very, very difficult game.
“We will take things step by step, but we had nine ‘finals’ and we have won the first three of them.
“That gives us a good feeling, but nothing more. We have to be humble and ready for the next fight.”