ABC's thinking exactly, back in '78, and although
WNT did finally make a star of Peter Jennings after
he got it solo, the basic idea was indeed to make
the news, not the anchors, the "star." I think you
have a point: it couldn't hurt CBS to try the same thing.
And like ABC in the late '70s, they might even pick up
a younger audience not disposed to watching the evening
news. And don't forget: having an African-American anchor,
Max Robinson, was a radical move for the time (1978).
Dan Rather occasionally mentioned Scott Pelley as his
successor; mainly, I think, because they're both from
Texas and not merely because Rather was impressed
with Pelley's work. Why he never formally named him,
the way Tom Brokaw did Brian Williams, is probably due
to the fact that Brokaw had set his retirement date;
Rather's came rather suddenly after the Bush/Air Force
Reserve flap.
What's so touchy is not that viewers would reject a
female anchor; they want the same credentials they
look for in a male anchor--someone who sounds as
if they know what they're talking about (and Jennings
may have been the best at that, IMO). A former
beauty queen might be OK on the local news (Diane
Sawyer was, and she started out in television doing the
weather on WLKY Louisville) but she'd better have something
more to offer a national audience (again, Sawyer) than a
pretty face or "cutesy" personality. However, I'm not
advocating her as an evening-news anchor; Good Morning
America doesn't need another anchor change this soon. There's
GOT to be a woman somewhere out there who can compete
with Charlie and Brian on their own terms (her name isn't
Julie Chen, that's for sure, IMO).