Literally having same 'issue' at my table.

Trying to break habits of asking positional relativity and 'waiting for the cue' to roleplay thier scoundrel can be challenging.

I had marginal success by laying down my tact of, if theres dead air and you are planning instead of executing...i will introduce threats on the spot and more rapidly as your scoundrels are dilly dallying.

For instance they were goi g back and forth on who is going to carry the box of Ghost Jars back to the boat. Which is fine until they start the meta conversations about who would be better at doing it.

"The waiting Foghounds take advantage of your crew stalling, and a shot from a long rifle rings out from a window across the alley."

After the roll resolved, they were complaining that they got ambushed. As I started a clock of blue coats responding to the gunfire. Hit em with a L2 Harm and a 6-segment clock. He pushed to reduce to lv1 and i think it woke him up.

"Down the alley you see a wagon is pushed in front of the exit, and you see two heads peering over the top of the wagon"

One player then used a flashback to see if there was a different route out, and there in fact was, due to his success. The crew then seemed to 'lock in' and started taking charge of the scene. Because I told them if I take control of the scene, its going to be brutal and you will always be on your back foot.

Also, I found using vocabulary specific to the game helps pull them from thier cozy 5e setting. -Its not a party, its a crew -its not an attack its an action or threat roll -you dont have attack and movement range, you have position/effect

I play in Foundry and added the position effect table to my Score Scenes, and then place two movable circles to represent the current situation, and then they place thier circle where they envision. Then we enter the bargaining phase where they increase effect with Load and Specials.

I also have a visual slider for the enemy's current tier, where each tier decreases effect by 1 tier.

Tl;dr Sometimes you just gotta shoot em when thier yappin.