...it's a shame that he needs to do so much defensive work.
Why is it a shame? Does he seem like it's something he dislikes? Did you know he used to be a DM?
If Klopp could genetically engineer a 9 for our system it would basically be Firmino*. Coming to think of it, maybe that's why his teeth are so white?
(Though in reality what's actually happened is that Firmino's all round game and pressing are so exceptional that Klopp's adapted his system around it. It's why we tend to look disjointed when he's either not in the side or shifted wide).