Path Dependence is a B@#$#$!

So, NBC is apparently regretting its Leno decision and is stuck.  They can move Leno to 11:30, but then what happens to Conan?  If they move Conan to midnight, then what happens to Fallon, who has done better than folks have expected?  And, of course, how does NBC fill the five nights at 10pm that used to be a pretty strong slot for them?  That really is the question.  Do they have enough material to fill those hours and will this material just continue to lose those time slots?  Where is Southland when you need it?  Oh, on TNT.  Ooops.