Which positions are involved in a 7 on 7 football drill?

7 on 7 drills include the 7 offensive players against 7 defensive players.

There are no linemen in these drills.

The positions included are as follows:

offense:

QB

RB

1-4 WRs

1-3 TEs

FB

The center sometimes is on the field too to practice snap exchanges with the QB

defense matches whatever the offense puts on the field so:

Strong safety

Free Safety

Corner backs to match the WRs

Linebackers to match the RBs, TEs and FB