His sole significant experience is running what Carroll and Chow created .
Sark has n't been in coaching long , and he has n't really been employed by enough different people with different styles to truly understand what works , what does n't .
Sark 's sole significant experience is running what Carroll and Chow created .
Sark has n't been in coaching long , and he has n't really been employed by enough different people with different styles to truly understand what works , what does n't .