As with many things in life, two things are true at once here:
1. VI is a terrible coach, one of my friends who covers the large European leagues for a podcast, shared his heart-felt condolences when he was hired.
2. The squad is rubbish - I'd argue very few, if any, coaches could succeed when you replace experienced Championship-level players with complete unknowns from smaller leagues. Could a better coach get better results? Probably. The season as a whole would still be struggle.