In general, those that have rested on the side that players today are hitting the ball too far have settled on a change to the ball as being the easiest and most effective means to correct this issue. While I agree that a change in the rules around the ball could have a profane effect on how the game is played, I would be a fairly controversial change and could greatly anger a large majority of the golf industry. I would love to see the USGA and R&A work with the tours to begin to implement tour specific ball specs, but once again I don't see that happening.
As the majority of players in golf still do not hit their drives over 230 yards, the problem is really relegated to the upper echelons of the game, so a proper solution should really have no impact on how the masses play. Presumably, this means there will not be one perfect solution, but rather a series of small changes that can effectively influence top end distance. In a conversation with my brother the other day he suggests that a change in acceptable tee length used on the professional tours could be fairly impactful in adjusting the driving distances among the worlds best. He suggested that the tee is made shorter.
Trackman testing has proven that hitting up on the ball can have a large impact on total distance. At the clubhead speed of the top tour players, ~120mph, a change in angle of attack (AOA) can result in a difference of 15 to 30 yards in total distance.
The average pga tour player has an AOA of -1.3* and a carry distance of 275, but of course the great concern with the ball is not in the average. However, the majority of the bombers on tour who carry the ball over 300 yards have attack angles near +3*. Their more elevated AOA is being greatly aided by the height of the ball off of the ground. By limiting the tee on the professional tours to a height of 1.5 or 1.25 inches, the angle of attack into the ball would be flattened by necessity, reducing the total carry distance of the bombers.
This would be a fairly simple change to implement. Tee's of this length were standard 20 years ago and are still made today. It would not be a big change to the industry as a whole. From the tour perspective, I'd fathom the player reaction would be similar to the groove rule back in 2010. A lot of hot air, but after a year or so a moot point. From the perspective of the casual player, the taller tee's would still be permitted for their usage and would have no impact on their day to day play.
This change may not be "enough" on its own for many people. But Its unquestionably it would reduce driving distance on tour. This is the obvious first step that no one is discussing.