Vipassanā Without Samatha?

I have heard it stated that vipassana can be practiced without samatha. Since samatha leads us to the early jhana factors of vitarka and vicara, how is it possible to do vipassana with wandering undirected and unsteady mind? "The Buddhist commentarial tradition, as represented by the contemporary Theravada, interprets vitarka and vicara as the initial and sustainted application of attention to a meditational object, which culminates in the stilling of the mind." - wikipedia ----> https://en.wikipedia.org/wiki/Vitarka-vicara