I use hollistic select as well, its a good food and honestly where she is just a puppy I dont think she is bored.. I wouldnt mix food at this point if you do and she has a problem with one of them you wont know which one it is.
Hollistic select is a good puppy food and has tiny kibble so I think she will be fine eating it, just leave it down and let her pick at it freely.. Im sure she prefers the wet food but if she his hungry she will eat the dry kibble and you want her to for her teeth.
JMO that I would not mix foods this early incase of allergy or stomach upset you wont know which caused it
Try putting parmisean cheese on the kibble it works