monica seles was known to practice 3 times a day.
rafa has to practice twice day on clay for a total of about 5-6 hours a day. that is the only way he can start to find the consistency in his ground game again.
it has to be clay. clay is the wellspring from which he flows. clay can get him going again but he has to embrace it now.
all other options are closed. he wont win a title on any other surface at the current rate.
clay will give his confidence a boost as he starts to run over the top players on clay again.