When most clubs go the route of egalitarian type decion making you can be sure the final result in any modernization / renovation program, etc, etc, will be some sort of water-downed outcome.
The history of golf is littered with clubs that use the "committee" system and the net result is the following:
1). The birth of too many trees lining fairways clogging the various attack angles envisioned by the original architect.
2). The elimination / addition of bunkers which in many ways have little concrete purpose.
3). The gradual shrinkage of putting surfaces because of mowing / playing patterns.
I can go on and on with the various assundry failures. Suffice to say -- the top clubs maintained their status because of the leadership of one man at the top (i.e. Roberts / ANGC; Fownes / Oakmont; Brown / PVGC.
Once you start a collaborative process inevitably you must have someone (i.e. one person or the famed "committee") mold these different aspects into some sort of consensus. This consensus will then be the product of compromise. Compromise in many ways can rob the course of the creative juices the architect can provide.
I am sure many architects can tell stories of how they "conceded" one element during the decision process in order to preserve their artistic qualities for other holes.
Sad to say but from my perspective true, most people at the top clubs have only at best a VAGUE notion on the very history of their club. Ron Whitten is absolutely on target when he says that paying extra $$ for a return to a club's past is usually something that generally does not engender a favorable response.
Architects are no different than other professions. While they certainly give respect to the works of their peers, they nonetheless believe they have a better vision on what constitutes a superior hole / course. Remember they are competitors and as such will fight for the key jobs available as well they should.
Once a club begins the process in consulting an array of architects the inevitable outcome is an overload of ideas. Pity the poor person / "committee" who must then pick and choose what to do.
The best decision making any club can institute is having one key person sit at the top of the pyramid. Too many clubs have too many people with egos the size of the balloon's that march down 5th Avenue during the Macy's Thanksgiving parade. Each one of these "experts" thinks they know golf course design.
I would advise clubs entertaining discussions on possible changes to their course to follow Gib's advise: What is being achieved with these changes? More importantly, clubs need to place someone with the mind of Yoda in the position of decision making. Too many clubs have presidents whose primary function is to decide what size shrimp works best with the upcoming member / guest event and how long shorts must be!!!
I can argue the point that as much as most people say technology has ruined classic courses the actual fact is that stupidity from within club memberships has been the real death grip for these masterpiece designs. I wish Merion the very best and I keep my fingers-crossed that this superb course will not be enhanced and not ruined.