"Red Bull are in the unique position of having four talented Formula One drivers under contract who can be rotated between the [senior Red Bull] Team and Toro Rosso", the energy drink giant's statement read.
Thai Albon, 23, has been promoted from the team's sister outfit, Toro Rosso, with Gasly going the other way.
While teammate and former Red Bull Racing driver Daniil Kvyat sits ahead of Albon in ninth place in the driver standings with 27 points with six top 10 finishes, including a third place finish in the German Grand Prix, Albon had shown more consistency, posting an average finish of 11.67 compared to Kvyat's 12.00.
Meanwhile, Albon has impressed in his debut season in F1, scoring 16 points for Red Bull's junior team Toro Rosso.
Verstappen has won two of 12 races this season and is third overall on 181 points while Gasly, the 2016 GP2 (now F2) champion, has struggled with just 63 points.
Gasly is set to replace Albon at Toro Rosso for the remainder of the 2019 season. While Verstappen challenged from victory after taking pole position, Gasly only qualified sixth, 0.8s adrift of Verstappen, and then finished behind McLaren's Carlos Sainz in the race. "We need him to be racing Ferraris and Mercedes. The problem is he's not in the mix at all".
The switch-around marks a meteoric rise for Albon, who was racing in Formula Two previous year and seemed destined for a future with Nissan in the all-electric Formula E series before Red Bull stepped in. Red Bull has pulled off another shocking mid-season move, sending one of its drivers "down" to Toro Rosso in order to gauge someone else's talents. He scored 16 points and now sits in 15th place in the driver standings.
However, Kvyat's track record has been even better, with the young Russian outscoring his teammate by 11 points.