Hmmm, let me see. Ignoring the CRJ's for a moment...
3x 146-100? But we only have 2 of them...
2 leased Dash 8s? Well, that would make sense as they were only short-term leases to cover until the Q400 comes on line.
The CRJs were acquired to operate AF routes that AF then reneged on. They were always going to struggle- BE would never have bought them for their own routes. Highly unsurprising to see them go...