By Wilton Jackson The 49ers legend believes Trey Lance is ready to be the team’s signal caller heading into next season. For nearly five months, the 49ers have openly looked to trade quarterback Jimmy Garoppolo. However, Garoppolo underwent offseason shoulder surgery in March and his recovery process, along with a small market for mid-tier quarterbacks, created a halt for potential trade partners. However, nearly two weeks ago, ESPN’s Jeremy Fowler reported that Garoppolo was on “schedule” with his initial date to return to throwing the football again on Monday. As things begin to heat up in J…