1. A method of implanting a glenoid component having a concave articulating surface comprising: accessing a scapula; identifying an inferior glenoid circle center of the scapula by identifying an inferior point of a glenoid rim, identifying an anterior point of the glenoid rim, identifying a posterior point of the glenoid rim, and establishing a best fit circle based upon the identified inferior point, the identified anterior point, and the identified posterior point; preparing a glenoid fossa of the scapula to receive the glenoid component; selecting the glenoid component having the concave articulating surface; and implanting the selected glenoid component based upon the identified inferior glenoid circle center in the prepared glenoid fossa.