They had bulb as AC for the last 3 months of the 2024 season, and I quite liked what he was doing with alecks (even if it didn't show in the results). I hope they can find a more long-term solution, though, because I don't know how long alecks can navigate the squad on his own
As for the roster, I don't think they should change it unless they have no other choice. They have a massive fanbase around these five players, and despite how they perform in the eyes of those on VLR, the casual VCT community will still root for them and watch all their games because of how entertaining they have been and can be. So from both a PR and monetary standpoint, I don't think it's the right call to make changes. Especially when there are no flaws in the current lineup other than a little bit of role clash, which can easily be solved over an offseason with a player changing roles (e.g. tuyz is playing sentinel in comp, SUYGETSU is learning controller, something is frying on Fade and Sova in ranked right now).
Igling is the one thing I'm uncertain about. PRX isn't a team that does much igling historically, because that's just not how the team has ever functioned. Jinggg and something shared most of the midrounding, though, so I'm tempted to say one of them should igl. Leaning more toward Jinggg because a) something is learning an entirely new role and he should probably focus on that and b) I feel the community won't be full ready to accept Jinggg again unless he starts adding another level of value to the team, which igling can definitely do