by the A's in 1976 and made it to the major league club in 1979. After the 1984 season he was traded to the Yankees, but then traded back to the A's in June of 1989. He was traded to the Blue Jays on July 31, 1993, but then granted free agency at the end of the season and so re-signed with the A's. After also playing a bit for the Padres and Angels, he returned to the A's for the 1998 season (and then played for five more teams after that).
But Rickey sure was a fantastic player, and great fun to watch. He still has the single-season record for SB, swiping an amazing 130 in 1982 (and he ran a lot that year, as he was caught 42 times too). And that was far from a fluke, as he also swiped 100+ in 1980 and 1983 and regularly paced the AL in this category. He sometimes hit over .300, but always had a high OBP in part because of his unique batting stance that limited the appearance of his strikezone. He displayed power in some of his seasons, and he was well known for his leadoff HRs to start ballgames. He scored 100+ runs in seven seasons for the A's, plus twice more when he split time with other clubs. In 1990 he took home AL MVP honors after hitting .325 with 28 HR, 65 SB, and 119 runs. And he did well in several postseason series, including the 1989 World Championship season when he hit .400 with eight SB and two HR in the ALCS and then hit .474 in the WS.
But the Athletics have been loaded in the OF over the years, so there is no lack of quality candidates after Rickey. I’ll start with Al Simmons (1924-32, 40-42), who had some insanely good seasons in for the Philadelphia Athletics. Regularly amongst the top MVP vote getters, he never took home the prize. Starting as a CF, he switched to LF after his first few seasons. After hitting .308 as rookie, he then broke out in 1925 hitting .387 with 253 hits, 24 HR, 129 RBI and 122 runs. In 1927 Aloysius managed a .392 average, and then later had one of the best four year stretches that any hitter ever has. In 1929 he hit .365 with 34 HR, 157 RBI, and 114 runs. In 1930 it was .381, 36 HR, 165 RBI, 152 runs. In 1931 it was .390, 22 HR, 128 RBI, 105 runs. And in 1932 it was .322, 35 HR, 151 RBI, and 144 runs. He led the AL in batting average twice, and came in second twice more. In all nine of those years he hit 100+ RBI, and he didn't slack off in the World Series as he hit .333+ with 6 HR in the 1929-31 series, helping to lead the A's to championships in the first two of them.
There is an embarrassment of riches to choose from for the third starting spot in this OF. One candidate is the famed Reggie Jackson (1967-75, 87). Primarily a RF, the hard-swinging Jackson started his career with the A's and then returned for his final year in 1987 (mostly as a DH). His hitting style meant lots of strikeouts, but also meant 25+ HR seven times with the A’s. In 1973 he garnered the AL MVP after hitting .293