I agree.
Regarding Janssen. His standout play is his strength and his back to goal play. He is probably better than Kane at this but of course Harry is so much more rounded (run the channel, drop deep and collect it, sniffing in the box, long range accuracy).
But we have to work with what we've got. At his age and the current timeframe/issues we cannot expect VJ to develop too much. We have to play to that one strength he has and that includes the 3 behind realising that VJ is basically a post, one that can not easily be knocked over. He will lay it back to you, lay it sideways or the best thing, lay it round the corner as the onrusher breaks the defensive line. Poch must realise this as it is quite visible.
Two things worry me.
1> He regularly subs Sonny and Alli who in my eyes look well matched for this type of game
2> VJ is not even reguarly starting, constantly chopped and changed with Sonny (who is a completely different type of player, and im not sure if an out and out striker)
I think it may have been better to just stick with VJ to at least have a focus and a consistent game plan even if it took a while to develop. Maybe when Sonny plays up top it just confuses as the approach play gameplan just keeps changing.