You have the payoff but too few ways to activate it.
Look for Unsubtle Mockery.
Mockery answers a blocker and may grow Lecturer if its three mana exceeds Lecturer’s power or toughness at both checks.
Your synergy is already working but you keep falling behind.
Take an early play or answer before another expensive reward.
More mana is useful only with enough spells to spend it on. Keep early interaction instead of loading up on expensive converge rewards.
The support is missing
Favor castable creatures and interaction if narrow support does not arrive.