Altered ingredient amounts.
On this one, I tripled the sauce and marinated the chicken in 2/3s of it. Omitted the oregano, and added coriander (a key ingredient!) at the end of sauteeing the chicken. When I sauteed the chicken (strips not cubed), I dumped the marinade and added the last 1/3 of fresh marinade to the chicken as it was nearly done cooking through, which only took a few minutes, not the 20 mins the recipe calls for! I also added a splash of tequila to the chicken while cooking, per other reviewers; was a nice touch! Used white corn tortillas (personal fave), and served with grated colby/jack cheese, chopped tomatoes, & the guacamole on allrecipes.com by Bob Cody, increasing his call for cayenne pepper by at least double. That gave this dish a bite that I think it needed. Would have been too bland for us, otherwise, but it was a nice meal, complete with margaritas!