What I have tried to give you here is a range of useful articles. They cover a range of topics, but at their core you will find issues relating to detection and plugging of the leaks which may be draining profits from your business.
In many cases it is the unseen and undetected profit leaks which cause the most problems. We all fix a dripping tap. But if we can't see the drip we assume that everything is alright.
And that's the problem. We fix what we see when there are so many other areas where a tightening of market targets, or systems and procedures, will cause a stronger flow of profits.