It doesn't make any sense, in my opinion, to risk Alaphilippe's chances in one day races or on stages, by playing an "additional" Evenepoel card. Alaphilippe's best chances and most of his successes have come from the team really working for him and him being aggressive. The "he can sit behind" is nice in theory, but I can't remember that having worked out so far; either then his teammate wins or his teammate stays in front and gets outsprinted - with someone who's not a great sprinter ahead the chance that the team comes away with nothing is pretty big, while they have a pretty good chance when they bring Ala well and fresh not too far from the finish. You can try and mix this pattern up now and then, but for me it doesn't make any sense to just go "well, both are going to try on each of these stages, and whoever wins, wins".
For me Evenepoel is now, more than ever, a stage racer. I know, San Sebastian, I'm not saying he cannot have success in one day races, but he seems clearly made for stage races. I feel people think he should do one day races rather than GTs because they somehow think that one day races are the lesser races and he's not (yet) up to GTs, but I don't see it that way at all. His abilities, for me, point to stage races, and I think the team should see what he can do in some races that are contended by the best, like I said, UAE, Catalunya, such, and let him do the Giro again, fresh and healthy this time. Then you will see what his abilities are. He hasn't done any serious mountain stages by now in really best form, so before it's clear that he's really not up to those, so what's the use of making him contest one day races and stages predominantly now?
I don't know how well they get along in private, but in races it should be possible to have a great calendar for both of them, especially with Almeida leaving and no other big name coming in - there are Honoré, Bagioli and Masnada with a remotely similar profile, but they should still be behind in the pecking order, and even with these five you have enough races on the calendar to distribute, especially since there will always be someone ill or injured. It makes sense to not have Evenepoel and Alaphilippe do too many races together, in my opinion.