It is not allowed for us to take a specific person to be an Imaam and not benefit from the knowledge of others… Shaykh al-Albaani
The Imaam said, “It is not allowed for us to take a specific person to be an Imaam and not benefit from the knowledge of others because the truth which Allaah تبارك وتعالى revealed to His Prophet ﷺ is not restricted to being found in one man after him ﷺ.
We do not believe about the Companions who succeeded him ﷺ what the Shee’ah believe about ’Ali ibn Abi Taalib, [i.e.,] that all of the knowledge which the Prophet ﷺ had in his chest was transferred to ’Ali, we do not believe this, for this reason they believed him to be infallible and held him to be like the Prophet ﷺ in terms of infallibility.
We say: the knowledge which was in the Prophet’s chest ﷺ was transferred to the Companions—not just one Companion—for this reason, whoever wants to gain knowledge or gain an abundant portion of it cannot do so from only one person, rather he must benefit from all of them, for if not, he will have forfeited a great deal of it.”
Al-Hudaa wan-Noor, 101.
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This Knowledge Is a Matter of Deen الدعوة السلفية 