I apologise if you found my post patronising; That was not my intention. When formulating an answer to a post I have little idea of the target of my reply. You may be a professor of fluid dynamics or a science hating teenager, It isn't easy to find the right tone.
You appeared to expect the food being washed around from the outlet to get sucked into the input and I assumed that you expected the water flow to be directly from output to input. If this isn't what you meant, then, yes, perhaps you should have been clearer.
As to what you should do, well most people with an external filter would arrange the input and output as you have; One on one side of the tank, the other on the opposite side. It is undesirable to set up your filter so as to suck in food. The food is for the fishes, not the filter. It will get stuck inside the filter, decay and increase the ammonia load on your filter. Not to mention being a waste of money. Secondly, it is almost impossible to arrange your filter to prevent dead spots, especially if you have any obstructions such as plants, wood, rocks or plastic deep sea divers in the tank. These will all divert the flow in some way. This holds true even if you use a spraybar. A spraybar just alters the circulation patterns and is usually used to reduce the force of the flow from the output. So if your flow is too strong, use a spraybar; if it isn't, you should be OK with what you have.