We've reached a rather bizarre path in the development of Mike Singletary as head coach.  The 49ers currently sit in the midst of a 3-game losing streak, which one would think would lead to less than stellar thoughts about Coach Singletary.  And yet there reminds a positive vibe within the 49ers and folks are not jumping on Singletary's back to get things figured out. Last week Singletary's approval rating here was at 89%.  Over at ESPN.com it dropped down to 8...