Sicario2 the implication that Gyokeres isn't a gamble is wrong. Reality all the options out there are gambles. No sure thing.
Also, people acting like he has to be scoring hat tricks every game to be considered a success...all he really needs to do is (a) be more useful than Jesus and (b) cause more chaos in the box than Havertz currently does (ie. just behave like a striker).
I'm being a bit flippant but the way some people talk, you'd think we're bringing a striker in to score all our goals. It's not like we have no base to start from, we need someone to improve our attack rather than someone to be our attack.