Highly doubt it.
Next year you want constant tyres to learn about the completely new car chassis for next year. Even Pirelli said several times that 2014 tyres would be conservative due to the the unknown effects of the new rules.
Then Pirelli could produce conservative tyres just as any tyre company would.
See, I don't think it is necessarily a problem of any random tyre company's inadequacy to produce quality tyres, instead it is the ever increasingly non-testing issue that cause all headaches. Pirelli have been producing agreesive tyres since the day one, but these problems occured this year, which suggests that Pirelli's testing car become gradually obsolete year by year in this development craze of F1, hence the desperate need of 2013-Mercedes car test at Barcelona. This is crazy to produce tyres based on a 2- or 3-year old F1 car for use in current generation cars. Therefore, inmho, Michelin would have had similar problems in the current state of affairs.
FIA and teams must seek for a change in tyre testing. Change in company would hinder to see the real issue.