$1.$ Assuming Kenton, the Northern Division Manager, in Birch Paper Case, is as self$-$interested as any other division manager. Why doesn't he just buy from West at $$430$ and move on$?$ Why go to the Commercial VP and exert effort, time, and energy for essentially the same financial outcome for his division as if he bought from West Paper?

$2.$ Assuming the Commercial Vice President has decided to require internal sourcing. Why not set the TP at $$480$ instead of $$430?$ The effect on Birch Paper's cash flows is exactly the same.