I saw the above poster on a closed restaurant near my apartment.
First thing that came to my mind seeing this poster was “Issue with Specialization”.
Let me share this a bit in detail:
Looking at the poster, it is clear that Chef is unavailable for 4 weeks as he is flying abroad to visit family. Due to chef’s unavailability the entire restaurant is closed for 4 weeks (or until his return).
Since Chef is the only specialist available with no “Cross Functional” team in the restaurant, any issue related to Chef impacts the entire restaurant.
Using this analogy on software development, the projects are at high risk when we have specially skilled team members with no backups .
On a lighter note, while reading the poster, you might also feel that the restaurant is being run by a non-English speaking owner.