Arsenal have been underestimating Walcott and more of their 'own' talents for years, and overestimating their bought players, who have been allowed to put in years of mediocre performances and still getting all the playtime they want.
Walcott has rarely even gotten a fair chance in his preferred position as main deep striker, instead being dumped on the bench or on the wings...
If I were him, I would have left Arsenal a long time ago, cause he basically wasted his whole career there...
Liverpool should bring in Walcott. He would do great as winger.