Big Ten business schools

Wondering what my son’s chances of getting into a Big 10 undergraduate business school are. Illinois resident, and UIUC is his top choice. Scored 1490 on SAT, and 33 on ACT. But grades are weaker, 3.26/4.0. These have been pretty consistent throughout HS, but he seems motivated to improve them this semester (Senior). He’s at a top 10-20 public HS in Illinois, has some extracurriculars, but nothing real impressive. Very smart kid, but admittedly lacking in motivation. Would like to be accepted directly into a business school, although may major in Economics as a second choice.

His first choice for a major is finance.