St Paul talks about the multiplicity of gifts/abilities expressed individually by members of the assembly which, together, express the reality of Christ present within the Church. His vision for the christian community, the Church, seems to be just this joining together of the many into one "body." But, at the same time, Paul is very clearly the one in charge, and he seems to be appointing people (eg; Timothy) to exercise his authority vicariously and to guide and develop the nascent christian assemblies he has formed. So, the community exist, seemingly, as both egalitarian/inclusive and hierarchical/exclusive. It's authority and power, what's right and who decides. I have a thesis that this intersection of authority and power is at the heart of the struggles of the people of God, but without getting into that too much I am interested in a particular expression of that conflict
In my tradition (Anglican) we have ordained persons who provide spiritual leadership. These people are "called" or identified within particular congregations, but then confirmed and tested by the hierarchical leadership beyond the specific congregation where their specific gifts were first recognized. Ideally, it is a nice balance between the inclusive and exclusive push/pull of the Church. In reality, it can be a difficult and wearying experience almost wholly at the whim and mercy of the hierarchy. There seems little willingness to trust in the discernment of gifts by the congregation. I suspect this is a hard-learned lesson involving situations where people weren't willing to be truly honest with one another. I generally assume good intentions of others, but let's be honest; anyone who spends some time in church knows that its full of difficult people (including clergy) or perhaps worse, people who don't know that church isn't reserved to the good and gracious.
I've met enough bad clergy persons that I can appreciate the hierarchical concerns regarding quality of candidates presented by congregations. At the same time, I've known good people who've become good clergy not because of hierarchical support but in spite of it. I don't have any solutions really, except this. Gifts and call and the action of the Holy Spirit is a crazy, a-rational thing that probably cannot be neatly fit into a "process." Identifying, discerning and preparing people for vocational ministry isn't like making widgets with a known raw material, a measurable process and an expected outcome. God can't be pinned in like that. I think it is far more like art, sculpting perhaps - which is more a process of stripping away the unneeded to find the true figure previously hidden within the stone.