By Athlon Sports Vladimir Guerrero Jr. is combining hard work with his ample talent and infectious spirit into MLB’s most complete offensive package — and its most appealing. Back home in the Dominican Republic after the 2020 season, Vladimir Guerrero Jr. began taking stock of a year in the majors that virtually any 21-year-old baseball player would be thrilled with and immediately decided it wasn’t good enough. Sure, he’d posted a .791 OPS and a 115 OPS+ while playing in all 60 games during a wild summer in which the global pandemic forced his Toronto Blue Jays to call Buffalo, New York, home…