There is nothing wrong with that suggestion, in fact I said something similar earlier when talking about making a curry.
The point is, evolution cannot prep, or fine tune in the way you suggest. It has no concious thought or thought process. God, on th eother hand, may well ave done just that. To get the finshed balance He needed to build it up slowly. (Though not in six or seven days, but millions of years.)
There is a ompleteness about Ecology that survival of the fittest doesn’t fit. Parasitism is one and symbiosis is the other, although they are extremes, Ecology shows cooperation that random development would find hard to produce because it involves to disparate changes occurring, not only simultaneously but within touching distance of each other.
it is said that we each have a perfect mate somewhere, but what if the partner lives in Australia (and you are in the US or UK?) symbiosis has the same constraints. If the two creatures never meet, the advantages will never be found. Survival of the fittest is negated.
IOW there are factors that evolutionary theory seems to overlook or ignore in its desperation to be the only means of change.
Richard