A proposed increase in state support will not be enough to stave off the latest projected deficit at the MBTA, and the top Senate Republican wants to respond to the looming headache by turning again to a playbook from the Baker era.

Senate Minority Leader Bruce Tarr is using this week’s annual budget debate to push for creation of another temporary fiscal and management control board at the T, similar to the entity that lawmakers and Gov. Charlie Baker created to oversee the transit agency after the disastrous winter of 2015.

Tarr said the new seven-member board, which would exist until at least June 30, 2028, would be “invested with more power to be able to take on some of the more challenging issues,” and could feature members “more focused on trying to change things in a more expedited fashion.”

His plan also calls for the governor to appoint a new “chief administrator” of the MBTA, who during the control board’s tenure would assume the role held now by the general manager, Phillip Eng.

Tarr’s proposed board would effectively take over from the existing MBTA Board of Directors for a period of four to six years and work to achieve “fiscal and management stability” at the T.  Tarr, who proposed creation of the new panel via an amendment to the Senate’s fiscal 2025 state budget, said he believes “we’ve got to do something different.”

“We’ve got to create a tool that would help us to drill into the issues that are continuing to face the MBTA,” the Gloucester Republican told reporters Monday. “That’s not to say that these are new issues. They’ve been with us for a while. But I continue to be concerned, particularly in the context of this [state] budget, that we need to do something to go even further with regard to the sustainability of that system.”

Asked whether Eng — who has earned votes of confidence from legislative leaders and Gov. Maura Healey — and the current board would be pushed out of the picture under his proposal, Tarr replied, “That’s not my target here.”

“But that’s why I think we need another set of eyes looking at this to make a determination about those folks,” he added. “By all accounts, they’re working hard and trying to do the best they can. I think they need help.”

Tarr’s amendment instructs the proposed board to craft a plan for “safe, reliable, and sustainable” service and a “financially responsible, long-range approach” to modernizing its assets.