Houg doesn't think Sebastian Vettel's dominance can be broken yet, but Mercedes can be a contender for the 2014 title.
While Sebastian Vettel charges toward his fourth title this year; the Constructors Championship is still close.
It appears the rumor is due to Niki Lauda chatting with Sebastian Vettel
Ross Brawn: "You must always look to improve ... without damaging what you have, which is very easy to do."
Toto Wolff reveals that Lewis Hamilton will aid the Mercedes brand image along with their new sporty road cars.
At this time, Mercedes nor Williams have made a comment on Toto Wolff replacing Norbert Haug.