This is the scenario 2012 Tour victor Sir Bradley Wiggins claimed would be a nightmare for his old team, but as questions about a leadership battle returned, the Welshman played the role of loyal lieutenant.
Speaking at a packed press conference outside their Campanile hotel in Carcassonne on the Tour's final rest day on Monday, Froome simply said "yes" when asked whether he might risk his own yellow jersey ambitions to help the Welshman. Everything was just ideal today and our sports director Lars Michaelsen had great confidence in me for winning this stage. Some guys might sit here and give some PR bull**** but I just say how it is with me and that's how it is. We're one and two. When I was in the break, I had him behind me in the auto and he explained everything, and I always knew what was coming and for sure that was a big help as well. "It's the ideal scenario at the moment and long may it continue".
Only Slovenian Primoz Roglic, who is fourth overall now, 2 minutes and 38 seconds behind Team Sky's Thomas, gained some time on the main contenders when he attacked in the final climb.
"It's certainly not going to calm people down", he said. "How the team want to ride".
"That's never going to happen so it's all about just winning this race", he added.
While Thomas was riding to victory, there was the fascinating sight of Froome staying behind to cover counter-attacks from Romain Bardet and Nairo Quintana.
The race resumes on Tuesday, the first of three days in the Pyrenees likely to see Dutchman Tom Dumoulin (Sunweb), third at 1:50, among Sky's biggest challengers.
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The peloton crossed the finish line more than 13 minutes later, hostilities eased for the day with more dramatic engagements sure to follow in the Pyrenees. It's not up to us to be attacking.
"We accept it and we have to make a decision about how to behave - we're trying to remain dignified, we're trying not to react and we're trying not to get distracted by it", he said.
They ended over 13 minutes down on the stage victor but it had no impact on the overall standings.
Brailsford will decide how to discipline Moscon after the race finishes on Sunday but played down the affect it would have on the team during the next week.
There were a number of world-class riders in the break, among it, Fraile, Alaphilippe, Peter Sagan (Bora-Hansgrohe) and Greg Van Avermaet (BMC Racing).
Dumoulin is up to third, one minute 44 seconds behind Thomas, with 2014 victor Vincenzo Nibali of Bahrain Merida fourth, two minutes 14 seconds down.
A group of more than 40 stragglers, which included talented French sprinter Arnaud Démare, were quickly dropped during the stage's lumpy start, while at the front a determined group of 29 riders made a breakaway stick, allowed to go because none carried much threat to yellow.