<b><b>Is it time you set up your own housebuilding company? Perhaps you have been made redundant in the latest wave of mergers, or are just bored of the grind of working for a big firm. Jeremy Gates looks at the people who can help you make the move and profiles those who have taken the leap successfully</b></b><br><b><br> <b>What do you need to know?</b></b><br><b>So if, for one reason or another, you are about to leave a big company and set up by yourself, what do you actually need to know? </b><br><b>Says Mike Ratcliffe at Wolsey: &amp;"I'm QS-trained, so I may be biased. You need to have spent some time in a land management responsibility on the building side at some time in your life. Sales are the lifeblood, but you don't need to be a brilliant salesman. You must understand it, and what drives the whole thing forward. </b><br><b>&amp;"The big thing which builders don't understand, and don't get exposed to in even a reasonable-sized business, is finance. In a big company, you don't have any real requirement to understand finance. It is what we teach best. </b><br><b>&amp;"Housebuilding is really all about using money well. All the majors turn their cash over …