I am familiar with teachings regarding sila (morality), samādhi (concentration) and panna (insight) which state that developing each one is important before progression to the next one (ie. good sila is important to develop the right type of samadhi, good samadhi for good panna) but that the benefits are not unidirectional (eg. good panya will help to maintain good sila).
I feel that they are difficult to grasp as abstract concepts though, one useful explanation I found was these two talks by S.N. Goenka: