The problem is not women pastors. It's pastors, period!

A modern (well, post second century) concept that comes to us from paganism (the priest), via Rome (the priest), through the reformation (Luther, Calvin and that whole merry tribe) where priest was transmogrified into the mythical idea of 'pastor' is the problem.

 This obliterated the polity Paul sets out in his letters and substitutes a governance system that neuters the church as an effective disciple-making family.

The point of departure for considering areas of service (ministry, deaconing) in the congregation (what ekklesia really means) is Galatians 3:28. Here there is no differentiation of persons by sex, status or ethnicity. None. Zip. Nada. Gone! Woman can speak in the congregation (1 Cor 11:5). Just don't be disruptive and rude (sigaō 'hold one's peace'), Also woman are not to import pagan teachings of the genetic primacy of women to denigrate men (after all we know that man was created first then woman drawn from him) or to inhibit procreation. Such as the pagan earth worshippers of Ephesus perhaps taught.

And bear in mind, telling women pagans to desist from over-bearing authority over men, does not thereby imply that men are the ones to do 'over-bearing authority to others.*

What the church is is a community of agape (1 Cor 13) meeting in congregation for teaching, prayer, etc, in edification...that all grow to maturity and become teachers (Heb 5:12). No hint of a "pastor" in 1 Cor 11-14. Rather we all contribute to one another.

Paul tells Timothy about the elders who look after the congregation for order and wisdom, and talks about men because they will be in a culture where prestige is the enemy of godliness -- just like today -- and older women (presbytis -- the feminine form of presbyter) to help younger women. And note this is not an exclusive area of service.

The main point is serving through supported shepherding (protecting), teaching and guiding of the congregation: a group, not a one-man command.

And if a congregation wants to hire a person or people skilled in the scriptures and learned, as a coach more than anything else, go right ahead, but they operate under the auspices of the elders. Not the reverse.

See Tom Wadsworth videos for more on the early church congregational practices.

*This brings up the unscriptual idea of "headship" which is over-read into the creation-generative statements about woman being created from Adam. Paul's foundational teaching about marriage is that each partner is there for the other. 1 Corinthians 7:4