Last time people asked this we exploded with goals coming from everywhere. Good omen
I think much of it should come from a better settled and balanced side. In a three Pogba will have more freedom not only to score but assist more. Our frontline this season has often been very static. People complained about Zlatan slowing us down, but Martial's off the ball movement is really poor as well. Mkhitaryan never seemed to find his best game except when having space and being able to combine with someone like Mata. Rooney... well...
Our frontline never quite settled or found a winning formula. I expect Mourinho will have worked out what's wrong and needs changing and that alone will result in more goals. What is abundantly clear though is we don't have a clinical frontman. I don't think Lukaku is it (not for a dominant side facing parked buses and his first touch), don't know if Bellotti is, this chap looks like it though.