Ditto regarding rolling back the OAD.
The manufacturers are now changing their 'line of products' year after year after year with different materials for the shell and cores, varied shell cover thickness and core diameters, different dimpling, totally new lines of balls within every brand, etc. etc.
Even with a new OAD, it would still be like today in that all could tweak their lines to claim they have the longest and straightest just like they do for present OAD. We all know they will laugh all the way to the bank. The ad guys, players, etc. would still have jobs and contracts.
They could phase out the old, phase in the new much as they did with the small ball, the old Ping irons with the groove issue, et al. As others have stated, it (new, shorter OAD ball) might start as a competition ball but would soon 'spread' throughout golf.
The manufacturers know how to make changes and could go backwards if needed at the drop of a US OPEN visor.
But wait a minute.... another idea is for USGA/PGA to start building 'the fazio jones dye competition trail' courses near or at major east,west,north,south locations. Maybe buy a few more existing 'Vahalla' courses as needed. If war chest is large, start building 36 hole complexes for competition only, let us USGA associates play for $75, everyone else $100, kids for $25. Probably can built a decent USGA/PGA venue, 36 hole course (will need one course for parking and tents you know) for less than $20 million on average. Have Dye, Fazio, R. Jones get started now, fire up the yellow iron... built about 8 complexes....that's $160 million...8 times 2 is 16 courses, times 30,000 rounds a year times average of $75 per round is $36 million a year less $16 million for course maintenance and salaries, put these 'archies' on a yearly stipend and change every course to suit the ball every 4 years or so....
Then they (USGA/PGA) could leave the rest of the courses the 'heck' alone ... stay away from the rest... 'You can dig in only in these 8 or so places...from this line to this line, these 36 greens, do what you want, whatever you want to these 36 holes, stay within the lines....THATS IT!!'
Old classic courses (where members or club presidents or committees desire changes for reasons other than tourneys) could change their masterpieces if they so wish for reasons other than hosting a tourney and trying to hold the scores down !
ps - keep sending in your USGA membership money to Arnie so the USGA can continue on its current path