I dine out on TOC [Theory of Constraints] ALL THE TIME !!! This theory states that any system will have a choke point (or constraint) that limits the throughput of the whole system.
In a factory it can be one machine or workstation - pretty easy to envisage. But in a service business? An accountancy firm, or plumbing or even a restaurant - this can be a little harder to see. In a restaurant if you are full and can’t fit any more people ok you need more seating/space. But if you’re not full, what then? What is holding you back?
You need to find the one best thing to fix to increase the throughput of you business - fixing anything else is a waste of time - a new logo if your food sucks, stocking correctly if your machines break down, hiring more staff if your receptionist can’t pass on a warm lead.
Be very choosey about what you select to fix in your business to make sure it delivers benefits - fixing the wrong thing is a waste of time.
