I said this above, but just to reiterate, Hayes' HR was absolutely ticketed. I think Oliva's was too, but I was only listening when Hayes hit his.
I don't know too much about Evans. He seems like he's one or two down on the totem pole even from the bench guys. If I had to guess, Riddle, Gonzalez, and Osuna/Moran will be the bench infielders, but it's definitely a crowded situation. I do think it's fairly straightforward that the starters are Newman, Frazier, and Bell, although part of me also wonders if Frazier may still have an everyday role but one of the more super utility variety. Unless Polanco is going to be platooned or something, I don't really see him getting ABs, so my operating assumption has been that Frazier will be the everyday 2B again.