Yeah, there was this thought floating around that the team will be focusing on the salary cap and managing the current roster of talent within it. Perhaps driven by the minimal amount of changes we saw with the last coaching change people aren't expected the Saints to be active, but that was a special case. Dennis Allen is essentially a continuation of the previous regime. Since he helped create that roster, you could expect him not to change it very much (except for the soul crushing DB cuts or trades right before the seasons started, he loved that for some reason).
Not to toot my own horn, but I've said it a few times now, we should expect to see these type of changes throughout free agency. Again, if I had to guess, this is just the beginning of an active, though perhaps not blockbuster, free agency period for the Saints. The team isn't going to look like it did last year. They're not waiting to reshape the roster after winning some salary cap olympics. They're making moves aimed at getting players better players not salary cap space.