A surgical stapling instrument, comprising: a shaft; an articulation joint; and an end effector assembly articulatable relative to said shaft by way of said articulation joint, said end effector assembly comprising: a first jaw; a second jaw, wherein at least one of said first jaw and said second jaw is movable relative to the other of said first jaw and said second jaw; a staple cartridge comprising a plurality of staples, wherein each said staple comprises an unfired configuration and a fired configuration; an anvil configured to deform said staples into said fired configuration when said staples are deployed from said staple cartridge; and a firing system, comprising: a sled movable within said staple cartridge and configured to deploy said staples from said staple cartridge as said sled moves from a proximal position of said staple cartridge to a distal position of said staple cartridge, wherein deployment of said staples occurs during a staple firing stroke, wherein said staple firing stroke is complete when each said staple is in said fired configuration, wherein said sled comprises a cutting member rotatably mounted to said sled and configured to cut tissue clamped with said instrument during a cutting firing stroke, said cutting member being configured to remain in a noncutting position during said staple firing stroke, wherein said sled is retractable proximally after said staple firing stroke has been completed until said cutting member contacts a pin extending from said staple cartridge such that said cutting member rotates upwardly into a cutting position, wherein said sled is advanceable distally once said cutting member is in said cutting position so that said cutting member cuts said tissue in said cutting firing stroke. a shaft; an articulation joint; and an end effector assembly articulatable relative to said shaft by way of said articulation joint, said end effector assembly comprising: a first jaw; a second jaw, wherein at least one of said first jaw and said second jaw is movable relative to the other of said first jaw and said second jaw; a staple cartridge comprising a plurality of staples, wherein each said staple comprises an unfired configuration and a fired configuration; an anvil configured to deform said staples into said fired configuration when said staples are deployed from said staple cartridge; and a firing system, comprising: a sled movable within said staple cartridge and configured to deploy said staples from said staple cartridge as said sled moves from a proximal position of said staple cartridge to a distal position of said staple cartridge, wherein deployment of said staples occurs during a staple firing stroke, wherein said staple firing stroke is complete when each said staple is in said fired configuration, wherein said sled comprises a cutting member rotatably mounted to said sled and configured to cut tissue clamped with said instrument during a cutting firing stroke, said cutting member being configured to remain in a noncutting position during said staple firing stroke, wherein said sled is retractable proximally after said staple firing stroke has been completed until said cutting member contacts a pin extending from said staple cartridge such that said cutting member rotates upwardly into a cutting position, wherein said sled is advanceable distally once said cutting member is in said cutting position so that said cutting member cuts said tissue in said cutting firing stroke. a first jaw; a second jaw, wherein at least one of said first jaw and said second jaw is movable relative to the other of said first jaw and said second jaw; a staple cartridge comprising a plurality of staples, wherein each said staple comprises an unfired configuration and a fired configuration; an anvil configured to deform said staples into said fired configuration when said staples are deployed from said staple cartridge; and a firing system, comprising: a sled movable within said staple cartridge and configured to deploy said staples from said staple cartridge as said sled moves from a proximal position of said staple cartridge to a distal position of said staple cartridge, wherein deployment of said staples occurs during a staple firing stroke, wherein said staple firing stroke is complete when each said staple is in said fired configuration, wherein said sled comprises a cutting member rotatably mounted to said sled and configured to cut tissue clamped with said instrument during a cutting firing stroke, said cutting member being configured to remain in a noncutting position during said staple firing stroke, a sled movable within said staple cartridge and configured to deploy said staples from said staple cartridge as said sled moves from a proximal position of said staple cartridge to a distal position of said staple cartridge, wherein deployment of said staples occurs during a staple firing stroke, wherein said staple firing stroke is complete when each said staple is in said fired configuration, wherein said sled comprises a cutting member rotatably mounted to said sled and configured to cut tissue clamped with said instrument during a cutting firing stroke, said cutting member being configured to remain in a noncutting position during said staple firing stroke, wherein said sled is retractable proximally after said staple firing stroke has been completed until said cutting member contacts a pin extending from said staple cartridge such that said cutting member rotates upwardly into a cutting position, wherein said sled is advanceable distally once said cutting member is in said cutting position so that said cutting member cuts said tissue in said cutting firing stroke.