The 2nd AC is often the data loader / unloader on small indie shoots.
On larger, well budgeted usually union shoots, you have multiple DITs. Those that are responsible for data management, camera management, and then those that are doing "on-set dailies" "scratch lab", even Baselight is getting into the action of on-set daily grades - applying luts and looks, transcoding and doing basic grading before sending it to post houses like Company 3, EFILM. If anything, the role of the DIT seems to be expanding, not becoming obsolete.
On larger, well budgeted usually union shoots, you have multiple DITs. Those that are responsible for data management, camera management, and then those that are doing "on-set dailies" "scratch lab", even Baselight is getting into the action of on-set daily grades - applying luts and looks, transcoding and doing basic grading before sending it to post houses like Company 3, EFILM. If anything, the role of the DIT seems to be expanding, not becoming obsolete.