A method of implanting a glenoid assembly, includes forming two bores in a glenoid region of a scapula. At least one of two pegs of a base component is flexed toward the other peg and the two pegs are positioned partially within the bores in the flexed position. After releasing the pegs from the flexed position, the pegs are fully inserted into the bores. At least one stiffening pin is inserted into a first passageway formed in the first peg after the first peg has been fully inserted into the first bore.
