Interesting and thoughtful ... but
As it relates to LPTA, there have been best-value procurements that have been failures and have been costly to correct. I think the point here is that there are some items, for example, commodity items, where LPTA may make sense. Where I believe the government falls short is in developing effective relationships between the program and the procurement organizations to partner in making the appropriate choices.
As it relates to innovation -- we all know that many innovations fail. When considering the political costs to some failures, many government agencies can't afford innovation. Nevertheless, I'd like to point out a NASA program that nurtures such innovation. (http://techtransfer.gsfc.nasa.gov/) This program encourages much of the innovation that this article discusses.
The notion of a YELP for government is intruiging. No doubt this would have to be anonymous, but sadly sometimes anonymity breeds poor behavior. I think Contractor Performance Assessment Reporting System (CPARS) is promising.