If you have been happy with the overall management style but see some areas for improvement, you can say something like:

Overall, I am happy with the management style of the company but there's a scope of improvement in the way we deal with our new recruits. We can allow them to be more independent from the beginning so that they start performing more quickly. Further, if we can also streamline our decision making process, it will be more helpful in cutting out unnecessary steps and reaching a conclusion faster.