( ( ( ( ( They ( ( do this ) ( because ( they ( ( ca n't ) ( overcome ( the ( inertia ( to ( change ( their ( organization ( to ( use it ) ) ) ) ) ) ) ) ) ) ) ) ) ) , ) or ) ( ( the tool ) ( ( ( does n't ) adequately ) ( perform ( the ( required functions ) ) ) ) ) ) . )
(ROOT (S (S (NP (PRP They)) (VP (VBP do) (NP (DT this)) (SBAR (IN because) (S (NP (PRP they)) (VP (MD ca) (RB n't) (VP (VB overcome) (NP (DT the) (NN inertia) (S (VP (TO to) (VP (VB change) (NP (PRP$ their) (NN organization) (S (VP (TO to) (VP (VB use) (NP (PRP it)))))))))))))))) (, ,) (CC or) (S (NP (DT the) (NN tool)) (VP (VBZ does) (RB n't) (ADVP (RB adequately)) (VP (VB perform) (NP (DT the) (VBN required) (NNS functions))))) (. .)))
They do this because they can't overcome the inertia to change their organization to use it, or the tool doesn't adequately perform the required functions.
(ROOT (S (NP (NNS Centrifuges)) (VP (VBP use) (NP (NN inertia)) (S (VP (TO to) (VP (VB perform) (NP (PRP$ their) (NN task)))))) (. .)))