Couple things here RR...
First, Fish and Snead have both said things in the past that did not prove true with regard to the QB position. Snead also said there would be a competition. Fish said there would be a competition. So his quote is likely meaning beginning of season as start of camp. There are some QBs in this class who could compete with him relatively quickly, like Goff for example, but even if they move up and take Goff I think they make him win the competition. Snead has mentioned specifically that it was a mistake not to have a competition with Foles and that was echoed later by Fish so I believe them that the competition will take place.
Second, I don't think they view Case as a long term answer. I believe they see him as the placeholder, bridge guy for the young QB/s they're gonna bring in. If they move up for Goff I think there will be one rookie added due to less picks available. If they stand pat at 15 then I think they might take two QBs in the draft, something along the lines of Lynch at 15 if he's there and then another guy later like Hogan. Or maybe Prescott or Cook in round 2 and then Allen late rounds.
Chances are we will see Case for a while longer and I'm ok with that, provided they invest in the QB position in this draft. If they take Lynch for example, Case is gonna start this year. Mannion is a potential surprise candidate too, but if they were impressed with him I don't think they'd have made all the comments about adding one or two QBs and improving the QB room.