Simplicial operads model infinity operads, but the standard (Boardman-Vogt) tensor product is not homotopically well-behaved. In this talk, we will introduce the category of (coloured) simplicial operads, investigate its Boardman-Vogt tensor product, and see why one might want to replace it with something ‘better’. We will recover the Boardman-Vogt resolution of a simplicial operad, which is a construction strongly related to the homotopy coherent nerve of simplicial categories, as both a coend, and as a colimit of a tower of simplicial quivers. Then we will discuss how these constructions could generalize to give a tensor product of simplicial operads with some desirable properties. If there is time, we will also discuss some disadvantages of simplicial operads as a model for infinity operads, and some obstructions to finding the ‘perfect’ tensor product.