This presentation discusses the key organisational behaviour issues faced by Thames Valley Building Society and provides relevant theories and recommendations for resolving them. The issues include poor communication and feedback, absence of clear guidance, and failure in developing key competencies and behaviours. The theories discussed include bureaucracy theory, human relations management theory, process management theory, and behavioural theory. The recommendations include improving communication and feedback, providing clear guidance, and enhancing workplace productivity. The presentation concludes by emphasizing the importance of understanding and addressing organisational behaviour for achieving effectiveness.