Addressing the whole team ahead of the international event, she stayed true to her roots.
“There was quite a Scottish theme to the speech,” she admitted, after pulling out another gutsy and dominant run, to overhaul training mate Jemma Reekie on the final leg of the race. “There were lots of southerners there so I gave them a few pointers about what might get shouted out. I think some of them got it, but I wanted to give a homely feel to it, because it means a lot to be captain.
“Just things that the crowd might shout out, like ‘gaun yersel hen’ or ‘gie it laldy’, a few words of encouragement they might shout out so they wouldn’t get confused.”
Most of those shouts were reserved for Muir herself, though. The 23-year-old, who broke the British indoor record over 5,000m in Glasgow on Wednesday night, was handed the baton in second place, after Jamie Bowness, Charlene Thomas and James West had completed their legs and admitted she had to dig deep.
“I think the legs were a little bit heavy, you would expect that,” said the 2016 Diamond League 1500m winner. “But I have done 1k in warmups and 1k is a little bit shorter so I was okay.
“I had to try to bring it home for the team.” To do that she had to overhaul Reekie, who was representing Scotland A and had been given a slight advantage by colleagues Jake Wightman, Mhairi Hendry, Neil Gourley.
“We have been training hard together so I know she is strong. I knew I had to put in the boot in from the start. I just wanted to go out there and run as hard as I can. I have been fortunate to win every time that I have done the relay so I wanted to come home with the win again today. As captain as well, it is part of my duties for the team.“
“She always goes out really fast so I always knew she would be right on me from the start,” said teenager Reekie. “But it was a really good experience.”
The same could be said of her warm weather training with the fellow Scot, who boasted the fastest time over 1500m last year and is tipped for even greater things this season. “It is really good, training wise, running wise and just seeing how she lives her life. We get on really well also, we have good fun when we are over training as well. When I came back I ran my first 3k there, and got the Scottish record, so it is definitely benefitting me. I am definitely getting better.”
Muir, though, set an unstoppable pace on the muddy and undulating course in the capital. Breaking free of all challengers she was roared on by the home crowd as she brought the team home seven seconds ahead of USA, in second, and Scotland A, in third.
It was another impressive step in her build towards peak form for the indoor season and then on to the summer and her tilt at a gold medal at the World Championships, in London.
On Tuesday, she heads back to South Africa for another three-week training camp, saying it is simply a case of working hard.
Whether breaking records or simply leading by example, as she did yesterday, that work ethic is always evident.