More like Spain in 2014 and that went well...
No, Spain introduced an out and out striker for 2014, Diego Costa, and he was a flop. Klose was pretty much a plan B (only "striker" in Germany's squad of 23), and was largely inneffectual by the time of the final (and wouldn't have got a look in if Reus was fit). Mueller is not a "striker", Goetze is not a "striker", Reus is not a "striker".Maybe it's just a matter of semantics. Teams just need ways to find goals, and use of a "target man" / back to goal type player is just one option. I'm quite comfortable about not having such a player in our squad, as that's not the way we'll be playing (as I read it).
Do we have the necessary goal scorers? Different question, but it's hard to know how many goals players have in them until they are well-served. And that's where the focus is.