The only problems you don't have are the ones you don't know about yet. You can't alway predict what will go wrong, but you can be certain something will go wrong. In Around the World in Eighty Days , Phileas Fogg had no way of knowing that he would be delayed because the trans-Indian railway wasn't finished. But he knew he'd run into an obstacle sooner or later, so he arranged to arrive in India two days ahead of schedule. If you have a problem with someone, confront them.
All problems are management problems.
Opportunities Opportunities are made. Bill Gates didn't get to develop DOS for the IBM PC because he was lucky. Be first to market. The best way to make a pile of money is to have a product no one else has. If a better job offer comes along, the only loyalty you owe your current employer is to give him a chance to make a counteroffer.