If we are being honest, calling Savic a DAM grossly understates his value. He is simply a talented Midfielder, who looks on the way to being a top3 CM in the world.
Wlith Silva and Dihno aging, adding him to Debryune will have us pretty much in contention for the next 5 years.
In contention for everything. Sure, a superstar forward has to be found (Aguero's future replacement) or teased out (Sterling, Sane, or Gabriel). But the base upon which they'd spring from in the future (Debryune, Savic, Bernardo, Gundogan, Fred) will guarantee an extremely high likelihood of success.
This is the kind of signing that would suggest we've learned from the mistakes of the prior 2 league winning seasons. Assuming we win this season that is :-)