Are Soft Walls good for NASCAR?

After watching the crashfest last weekend, and seeing 15 yellows in the busch race, I'm beginning to wonder. Softer Walls provide a cushion for drivers and help reduce the gforces involved in hitting a concrete wall at 190 miles per hour. But a crippling side effect is that from the use of these softer walls, there are more cars finishing races then ever before, and more cars running at somewhat decent, but still rolling chicane speeds.

Those ingredients I believe are partly to blame for the rise in cautions this year, look back on one of my favorite websites Racing Reference shows rundowns and summaries of cautions and who led the laps in an event, and go look for the last time a cup race went green the whole day, it was in 2002 at Talladega of all places. Softer walls started to come into abundance around that time, and now their proliferation is seen at every oval on the Nextel Cup circuit, and nearly every one in the Busch and truck series.

There isn't really a way to get anyone to eliminate soft walls, because driver injuries have decreased dramatically. I'm not against soft walls, but I believe that NASCAR should institute a rule that saves the teams a lot of stress and potential crew member injury and some cash in trying to keep avoiding rolling chicanes. Why not have a rule that states if your car goes behind pit wall that it can't continue in competition, along with a rule that states a car can't be worked on Pit road for more then 5 minutes. It takes cars out of races that have been crashed, and provides less of that rolling chicane, chain wreck accidents that seem to happen now.

NASCAR makes rule changes every day, I'd like to see one like this implemented, for the future of the sport and for the spirit of great competition.