There will be some level of criticism no matter who it is; be that inexperienced, not the right style of play, not considered to have a proven track record, not appearing to match the comments put out by Hallett as his description of who we’re going for.
But I do expect that the critics will be few. They usually are when a manger comes in, it’s about players they bring in and their first 15 games. That’s when you’ll know if they have the support.
Like someone else said, you have the right to reserve judgment and critique positively, where possible.