「」。
There's no question that 'leadership' is one of the important hiring criteria.
Literal
One [genitive-の] important hiring-criterion [to-に] 'leadership' [subject-が] exist [nominalizer-こと] [topic-は] mistake-not is.
HR/business register. 間違いない ('is certainly the case,' 'no mistake,' 'without a doubt') is a fixed phrase used to assert confidence in a claim — literally 'there is no mistake.' Often used as a standalone sentence 間違いない. When paired with ~ことは, it frames 'the fact that X' as 'without doubt.' 採用 ('hiring, recruitment, adoption') is a common business-HR term. 基準 ('criterion, standard, benchmark') takes its target with に when indicating what the criterion is applied to. The embedded clause structure: [採用基準に「リーダーシップ」がある] 'there is leadership among the hiring criteria' → nominalized by こと → topicalized by は → 'is without doubt.'