No there is not. The soul consists of the body and the spirit of man.
Wiccans and most other Neopagans don't even believe in that Devil, so they simply cannot invoke him in their spells and rituals. Pagans and witches believe that magic was created by their deities, the Goddess and God, and that it permeates the whole universe. Just like gravity or electricity, magic is a neutral force of nature; it can be used either for good or evil depending on the spellcaster's intentions.
There are few limits to what magic can do, however its effects tend to be much subtler than the flashy kind of "magic" shown in movies and tv shows. One of the many uses of magic could be, in theory, to make the souls of two persons switch bodies. However, I have never researched how it could be done, and in my few years of practicing Wicca, I have not yet seen such a phenomenon.
Answer Nothing is impossible and those with the proper will can find a way. My question to you would be, are you suspecting a switch of souls, and what reason? I've never seen a spell do it, but I've seen it from birth, as well I've seen an individual with two souls presiding in one conscious mind. I've seen a lot, and experienced a lot. I ask you to detail what this question involves.
Yes it is possible to switch souls. Yes there is a spell to do that. No we will not give it to you. It isn't something for even the most experienced witch to do.