First step for Vettel would be to beat his teammate. Ricciardo beat Vergne in the second part of the 2013 season when the latter was severely demoralized to miss the RB drive. Before that, things were pretty much even, especially considering that Vergne had twice as many retirements as Ric. Right now, it's either that Vettel, Ric, Vergne and, apparently, Kvyiat are world class driver material, or they are just good drivers, with the equipment playing a large role in how their image is shaped up.
As for Alonso, he is severely beating Kimi right now, one driver who was touted to be a very tough one to beat and the way he drove the whole 2012 season does it for me. He made very few mistakes, and consistently made the most of the chances offered to put the car into regular podium finishes.