Do we need a 30 goal a season striker? Don’t get me wrong I wouldn’t swap Sergio and his goals for the world but like for like replacements are impossible to find.
It’s similar to the Toure situation, most people were begging to sign Pogba as he was deemed the most similar player at the time. We went down a different route with KDB and Silva in #8 roles which very few predicted and even fewer predicted would work in the Premier League on a “cold, wet night in Stoke”.
You should always play to the individuals and teams strengths. If we lose Aguero’s goals but Jesus creates more space and chances for the likes of Foden & Sterling to exploit then we could easily make those goals up in different ways just like we did with Toure’s passing and goals.