Current manager: Silva
Previous Managers: Allardyce, Koeman, Martinez, Moyes, Smith*
*If you count Unsworth's interim terms as "manager," well, that's silly, especially since he authored no transfers, but you can swap Rhino for Smith if you want
So Martinez took the Moyes squad, made a few additions, and reached 72 points. Martinez also made some poor additions, but given that he reached 72 points with (largely) the same squad Koeman inheirited, I'm giving him a pass.
So then it's Koeman, and if you're more pedantic than me, Allardyce. So it's actually not the previous 5 managers who left the squad in shambles, is it? It's actually Koeman and Walsh? Or am I missing something?