HNK Rijeka is facing challenges in defense in recent matches, and an analysis of their current form reveals several key areas for improvement. In the past few games, the Whites have often been exposed to quick counter-attacks from opposing teams, resulting in unpleasant goals. These issues highlight the need for deeper tactical analysis and adjustments.

One of the key factors affecting Rijeka's defensive effectiveness is the setup of their midfield. In recent matches, midfield players have frequently left gaps between the lines, allowing opponents easy penetration towards the goal. It is recommended that deeper formations be adopted with an emphasis on congesting the midfield. This could involve an additional defensive midfielder dropping back to provide extra support to the defenders.

Furthermore, communication among defensive players needs to be improved. In situations where opposing attackers found themselves one-on-one, misunderstandings often occurred. Implementing regular tactical drills during training that focus on communication and mutual coverage could significantly enhance players' situational awareness.

Additionally, Rijeka should consider formation changes during matches. Transitioning to a formation with three center-backs could provide greater stability in defense, especially against stronger opponents like GNK Dinamo Zagreb and Hajduk. This change would not only ensure a sturdier defense but also allow full-backs to engage more in attack, creating an overload in midfield.

Finally, the individual quality of players also plays a crucial role. Players like S. Cletus and D. Čop need to take on more responsibility in defensive tasks, and their ability to quickly transition from attack to defense can be decisive. Introducing additional tactical drills that emphasize the importance of each player in the defensive system can help strengthen team cohesion.

Considering these suggestions, HNK Rijeka can hope to bolster their defensive system and reduce the number of conceded goals. In upcoming matches, implementing these adjustments will be crucial for the Whites to achieve better results and secure a return to winning ways.