This is contradictory information. First, Cook complains about low sales in their own stores, as opposed to carrier's stores, then complains about carrier stores selling other phones, too, implying that they do not sell enough fruit? Carrier's stores sell too little, or too much (compared to Apple's stores)? Which is it?
BTW, it's not the salesperson fault if consumers choose a different device than the fruit-bearing one; it's just that people have learned to see past the shiny logo and realized that others have better devices. If one walks in a carrier's store and asks for the best devices available, they get pointed towards HTC One or Galaxy S4; can't fault the salespeople for telling the truth.