Derby County's defensive instability is the main cause of their recent poor form, which was extended by a home loss to Birmingham City. The team has not used an identical starting defensive lineup in back-to-back matches since late August, with this ongoing change being a factor in three consecutive defeats.

Several players have been used in defense since the start of the campaign. Manager John Eustace seems unsure of his best defensive lineup. This absence of a consistent partnership was clear in the goals allowed against Birmingham.

For the opening goal, a defender was beaten by an attacker's movement, failing to challenge as the opponent scored with a header. The second goal, another header, came from a corner where a defender was distracted by a player making a block, leaving the scorer free. Both goals were considered very avoidable.

Injury crisis compounds problems

The extended unavailability of two key defenders is a significant issue. If available, they would likely start. The club needs to manage with the current squad until these important players recover. Information on all unavailable players is accessible on the injuries page.

The outcome places Derby near the bottom of the league table with a low points total from their matches, having let in many goals. Their recent results show mostly losses, with a single victory during this period. The player who scored Derby's goal in the Birmingham match is one of the few positive notes.

Focus now shifts to an important away match against a team also near the bottom of the table. Reviewing the future fixtures indicates a crucial stretch is coming. The side needs to swiftly improve its defensive issues to move up the standings.