The most effective way to reach you target is to circle the wagons. My name is Vincent Gomory and I have 30 years of career coaching experience. First, do a detailed Linkedin analysis of contacts/employees related to the person you want to reach. Analyze their chronologies. Is there a pattern? Do you fit the profile of a person who works on that team? If so, make contact through in-mail, phone, and personal email to obtain informational interviews. I recommend Get Five (formerly The 5 O'Clock Club) books and tapes which provide an effective strategy for approaching your target's key influencers (the team members). The most important aspect of networking with these people is to find out what the culture is like at these companies. Many people have professional experience - but its the cultural fit that drives the interview to the next step. This article may help: https://www.thebalancecareers.com/assess-cultural-fit-when-interviewing-candidates-1918087. I am available for calls to answer any questions and provide a strategy for you to move forward.