It IS a gamble, without a doubt
but the biggest problem is NOT getting the work = ITS GETTING THE STAFF TO DO IT PROPERLY
THAT IS A MASSIVE HEADACHE
and as soon as you pick the work up , you can lose it.
My mate has some very good paying contracts, and told me hes not bothered if he NEVER picks anymore work up, as long as he doesnt lose what he already has,,,,,,,,, VERY GOOD ADVICE