Last Updated: 31/03/15 3:05pm
Toro Rosso continue to be the final proving ground for Red Bull's stable of young drivers in their ongoing search for the next Sebastian Vettel.
However, 2015 will place even great emphasis on the off-track guidance the team gives as they embark on a campaign with a driver pairing of Max Verstappen and Carlos Sainz whose combined ages come to just 37. Compare that to McLaren where Jenson Button and Fernando Alonso’s combined ages come to 68 and the inexperience of the drivers becomes abundantly clear.
In Max Verstappen, Red Bull and Toro Rosso believe they have unearthed a gem and his rise from karting to F1 via a single season of Formula 3 has been unprecedented. But such a dramatic rise means there are plenty of rough edges to smooth out in a series where every move is scrutinised.
Five years of single-seater experience makes Carlos Sainz the more experienced driver in the line-up, yet the 2013 Silverstone Young Driver test and 2014 Abu Dhabi post-season test remain his only outings in current F1 machinery.
Thus it will be up to team principal Franz Tost to nurture the two talents and the technical team to lead development given the drivers lack of experience.
It's unlikely that Red Bull's designated junior team will ever match their incredible feats of 2008, when a then unproven Vettel brilliantly won at a rain-drenched Monza and Toro Rosso outscored the senior Red Bull squad in the Constructors' Championship.
In truth, though, Red Bull owner Dietrich Mateschitz surely never originally envisaged Toro Rosso being anything other than a proving ground for the company's young driving talents when he bought the perennial back-of-the-grid Minardi team for the 2006 season.
Initially, the Faenza-based squad benefited from being able to run a modified version of the senior Red Bull team's car but from 2010 that rule loophole was closed and Toro Rosso had to become a constructor in their own right - and therefore design their own cars.
With the nurturing of improved technical capabilities and personnel unsurprisingly taking time to bear fruit, it wasn't until 2011 that Toro Rosso moved forward again and eighth place in the standings, just behind Sauber but ahead of Williams, was a commendable achievement.
Technical Director Giorgio Ascanelli left the team mid-way through 2012 to be replaced by former Sauber man James Key, with points finishes in six of the final nine rounds saw them finishing ninth overall that year.
A sixth-place finish in Canada for Vergne in 2013 was the team's best result since Vettel's 2008 win, and he repeated the feat last year in Singapore as Toro Rosso finished seventh in the constructors’ championship, albeit a disappointing 125 points behind sixth-placed Force India.