Lubricate Loaded Calipers? Brakes dragging intermittently

You really should secure that outer pad in place even if it's not part of the problem.
The last thing I do before putting the wheels on ( helper holding the brake pedal down ) is force a wedge between the rotors hub and the bottom of the outer pad to hold that pad up while I knock/bend the 2 upper tabs down against the caliper. Messy blue glue optional.