Texas, in the end, didn't seem worth the effort. McKinsey left after a year and hated how they wrote Iris, and the show never found its footing. Though, had McKinsey not been on Texas she probably wouldn't have gotten the chance to play Alexandra on GL (and thus creating another popular soap character) as that's where she met Gail Kobe and Pam Long.
You have to question why NBC/P&G thought a new spin-off starring a popular character/actress from a now struggling soap was a good idea. That, or Texas should have been designed as a standalone soap with no direct ties to AW.