United, formerly known as Platinum Stars, were relegated from the topflight with De Sa at the helm, but Bantam has strong belief in the ex-Orlando Pirates mentor's abilities.
The retired Bantam won the Nedbank Cup with De Sa at Bidvest Wits in 2010.
“His [Roger] track record speaks for itself,” Bantam tells KickOff.com.
“I mean Roger has coached big teams like Pirates where they nearly won the CAF Champions League.
“Roger also guided Ajax Cape Town to glory in the MTN8 competition, and to think he had a lot of youngsters in his squad.
“It's because of this fact that I think that De Sa will be able to guide his NFD side to promotion this season.”
The 40-year-old also believes De Sa's technical team has been significantly strengthened with the recent addition of goalkeeper coach Andre Petim and ex-Kaizer Chiefs defender Dominic Isaacs to serve as his assistant.
“This was a very smart and wise move from Roger to rope in these young coaches whom also have lots of experience with South African soccer.
“He’s surrounded himself with young coaches that are also very much in touch with the young and upcoming generation of footballers. This is definitely a win-win situation for everyone at the club and that’s why I back De Sa to go all the way in this season’s NFD campaign,” concludes the one-time Santos and Mpumalanga Black Aces midfielder.