While Formula 2 graduate Sargent has shown impressive speed he has also endured a series of mishaps in the early races, his learning curve made harder by a run of tricky street or temporary venues.
He crashed in qualifying in Jeddah, collided with Nyck de Vries at the final restart in Australia, and then missed the sprint in Baku after another heavy accident in the shootout SQ1 session, having done a quick enough lap to progress.
The 22-year-old's home race in Miami was ruined by first lap contact with Lance Stroll’s right rear wheel that led to an early stop for a new nose and left him on his own at the back of the field for the duration of the race.
Vowles says that Sargeant has the speed but needs to be more consistent and not worry too much about matching more experienced team-mate Alex Albon.
“Logan's here because he's quick, and he is quick, he can deliver,” Vowles told Autosport. “But he has to start by just getting things controlled, delivering cleanly.
"In both qualifying sessions in Baku he made it to Q2. That's the consistency. And that's what we're looking for.
“What I've already explained to him is 'you’re quick enough'. And then, 'use Q2 to build your experience by almost double from what you're doing at the moment'.
“And that's what you'll start seeing him deliver on. You'll see that he'll slowly edge up.
“I'm not expecting him to be on Alex’s pace. Also he's had a string of races he's never even been to before.
Source: Autosport