Indeed, I agree with you for a part BUT the ladies have to be interested in doing new things too.
In Belgium, the Pointer Sisters made a single with our Natalia, a great singer. Single called "Sisters are doing it for themselfs", a cover of the Eurythmics. It's such a success that 5 concerts in Antwerp are taking place under the title "Natalia meets The Pointer Sisters". 55.000 people ! For Belgium that's HUGE. An energetic video made for the single etc etc.
Look @ the Pointers' web site :
http://www.thepointersistersfans.com/news.html.
Just to point out that everything is possible. YEZZZ, I BELIEVE IN THE THREE DEGREES !