ok heres my 2 cents fish prey on other fish,the weak one the strong one the hurt and crippled ones but thay prey on the ones that are diffirent more times then not
so if you make a bait diff. looking then the other bait the fish are feeding on (say shad)then you should have a hot bait just by making it with a diff. color or size,I have seen fish not hit a 3inch lure becouse the bait that thay were feeding on was 2 inchs long and also the other way around most fish strike a lure out of instint becouse it is swimming passed them and if thay don't it will be gone and might have been its best chance at eating anything that day so yes a bait has to be fished to catch fish so you must catch the fisherman/woman first so thay can throw the bait.......