Though there were other women throughout the Bible in positions of leadership, such as prophetesses, evangelists, judges, leaders, etc., the above references should be enough to establish that women were indeed a vital and normal part of church leadership. Paul expected women to speak in the church, or else why would he have given the following directive. It would have been useless to give directions for women who were speaking in the church, if they were never allowed to do so.
Furthermore, if Paul believed that all women should never teach or speak in church, why does he commend many women who did just that.
1 Corinthians 14 is all about prophecy, tongues and orderly worship in the church. Paul was giving a call to order in the church as the women were disorganized during the service with their endless chatter asking questions.
In this chapter Paul is giving instruction on how to give prophecy and use tongues in an orderly fashion. Paul was not telling women that they were not allowed to teach men, but to keep quite in the church with there disruptive chatter and questions that interrupted the service. They were told to hold their questions until they got home and ask their husband. They were never told they could not teach men.