If you want a true free safety, a guy to play single-high in man/blitz, something Pettine likes to do with some frequency, Savage was the best choice. He also has the flexibility to play off coverage against the slot. What he he lacks is the size and build for flexibility to play SS roles, up in the box or covering TEs, and certainly not the hybrid ILB role.
He's a complimentary player to "Smash" Amos who is now pegged for those SS roles, and perhaps even some hybrid ILB snaps where the SS/ILB distinction is entirely blurred. Jones was pulled from the hybrid ILB role altogether and Burks has not inspired confidence in the hybrid role, while there is no ILB pick, hybrid or otherwise, at least down to the 5th. round.
I confess to being surprised by this pick. While the Packers said they intended to use Amos in multiple roles, this pick says he's going to be primarily in those SS/ILB roles when not in two-high safety. I thought they'd go the other way, picking a guy who would fit as either a FS or SS as with Amos to mix, match and disguise, with Amos the primary guy in single-high. I was fooled by Amos' contract. He was #1 on my FA want list, but I did not think they paid him this kind of money to assume this role, but evidently his flexibility and as a "glue" player was highly valued.
Long story short, you can't look just at the player. You have to look at scheme fit, and beyond that the other players around him and how they might complement each other.