All I can tell you for free is that it is a v competetive market, vvv good money to be made and all dat, but YOU HAVE TO KNOW WHO IS WHO up the chain else a smoother talking person comes along and you lose your contract just like that. A lot of brown nosing to be done too.
This happened to a good friend of mine. Had contracts to supply food stuff to a mainline supermarket chain and was rolling in big money, real big money. Bought a good house in the leafy 'burbs...put kids in expensive schools and was living it large. FF lost the big contracts and was now in debt, serious debt. Usitake kujua vile kulienda....but some of us lost some serious money as we tried to bail her out!
Na sitaki kusikia how she did not plan ahead! In short best know the sharks v well before you take a deep dive.