Two key Bitcoin Core committers, Jeff Garzik and Gavin Andresen, have together responded to the bitcoin scalability roadmap written by fellow committer Gregory Maxwell with some dire forecasts.
There are of course many other contributors to bitcoin development, but the Bitcoin Core committers, Garzik, Andresen, Maxwell, Pieter Wiuelle and Wladimir J. van der Laan, have write access to the bitcoin repository and are ironically a central planning group on bitcoin network improvement.
http://allcoinsnews.com/2015/12/30/garzik-andresen-warn-that-maxwell-led-bitcoin-roadmap-ignores-hard-questions-on-block-size-higher-fees/
