Table 8 Hypothesis testing. middle managers’ involvement in the strategy implementa- tion and organizational capabilities. The third hypothesis examines the link between middle managers’ autonomy and organizational capabilities. The fourth hypothesis is on the link between organizational capabilities and organi- zational performance. Finally, the fifth hypothesis tests the mediating effect of organizational capabilities on the relationship between middle managers’ involvement as wel as middle managers’ autonomy and firm performance. The Table 7 shows the different indexes examining the adequacy of the model. As can be seen, estimating the hypothesized model produced the following statistics (Chi? = 51.196; p=0.048; RMSEA=0.034; Chi?/DF=1.42; GFI=0.976; CFI = 0.990). Similarly, the Table 8 shows the results of the estimation of the structural equation models used for testing the research hypotheses. This table shows that al coefficients are positive and significant, consistent with the hypotheses, except for the relationship between middle managers’ autonomy and organizational capabilities.