I remember that being kind of the prevailing thought at the time, but the circumstances don't support that theory but so strongly, & I don't believe Whaley said that until after EJ stumbled.
Kolb was more of a serviceable veteran who could start if Manuel wasn't ready by the beginning of the season, but if the intent was to have Manuel ride the pine, why cut Fitz? And why roll into The season w/ only EJ & Tuel?
It's my belief that Kolb was the contingency plan, not the presumptive starter.