Putting Park in a Busch ride again, there's a good idea.
In one respect, people always say that there is just as much of a chance for a driver to get injured in a Cup race as in a Busch race, so why not do both and get more practice? Well, first and foremost, Cup drivers have a commitment to their Cup teams to be their priority. By increasing the number of races you are racing, you are increasing your chances of getting injured.
Second of all, the Busch, and truck, series are both great series in their own right, but due to the lack of experience compared to the Cup series, there's almost always more wrecks. Just b/c you are a Cupper, doesn't mean the busch regulars or rookies are going to give it to you any easier, and they can make mistakes. Who was the Busch driver that accidently got into Johnny Benson sending him into the wall at Darlington and putting Benson out of a couple of races? And howabout the driver who got into Bobby Hamilton in the truck race this weekend and now Hamilton is out three cup races? $hit happens, but it is more likely to happen when you put yourself in a series of less experienced drivers.
There's also a third part to this story. Drivers often forget that when they are going from their Cup ride to their Busch or truck ride, those teams rarely have any where near the budget their Cup teams do. There are usually not the same level of professionals working on the car checking if everything is safe and the same quality parts may not be used. Parts can and will break, like Steve Parks steering wheel (or column) in the Busch race when he got injured.
There are many factors into why Cup drivers should not be racing in the smaller series if they are really committed to their Cup teams. That doesn't mean by racing in a smaller series anything will happen, but it is more likely to. Is it really worth the risk?
Maybe Park will have some great success in the #8 busch car next year and that will boost his morale and help him in the Cup series. But I hope he stays safe out there, b/c the last thing he can take is another wreck.