He could be absolutely brutal, but again, 4 games. At a bare minimum he should be "penciled" long enough to see how good he really is, and right now, like it or not, he is the clear frontrunner for the 2b position in 2025. The only other feasible option within the organization is Mayer, and you don't move him to 2B unless you have confidence Story will be showing up for work a rather large amount of time over the next 3 seasons.
But right now any questions we have about Grissom - most of which I would suspect are tied to his 2 for 17 start - apply just as easily to any other internal option that we have.
And if Grissom even appears to be a league average secondbaseman with the glove, how high is upgrading over him on the priority list?
I mean, even if Grissom is a complete bust this year all around, is that the extent of his opportunity?