I have an upcoming all day interview with 7 different people... something like an hour each. The last time I interviewed for a new company had an on-site round

I have an upcoming all day interview with 7 different people... something like an hour each. The last time I interviewed for a new company had an on-site round robin process used where we interviewed with a lot of different management staff after initial HR interviews. I guess it's been this way for awhile.