For those of you reading along wondering why Jimmy would handle the situation, Jimmy is the consigliere to Leo. And as such, if Leo was too busy to handle it or gave some other reason, Jimmy would be expected to take control, but this time around it’s too close to the chest for him to handle it properly.
[Inside the DBM's headquarters...]
Leo the Boss: "What was so important that it couldn’t wait five more minutes? I’m very busy Jimmy."
Jimmy the Nose: "Sal and Lucy are back...and they’ve been made."
Leo the Boss: "WHAT?!?"
Jimmy the Nose: "They’re already upstairs. I’d handle it, but...I...can’t."
[Outside of Leo's office, Leo the Boss finds Tommy Gunn waiting.]
Leo the Boss: "Mr. Thomas S. Gunn, what can I do for you?"
Tommy Gunn: "You know who I am, but I don’t believe I’ve had the pleasure of making your acquaintance, Mr. --"
Leo the Boss: "Leo, just call me Leo."